MIL-STD-3034
The Sub-Category (SCAT) code is a four- to seven-digit numeric or numeric-alpha code used by NAVSEA to
identify a range of measurement requirements by functional category (identified on an associated MRC). Within
each currently active SCAT code, test equipment models capable of performing those measurement requirements are
assigned to the appropriate SCAT. The TMDE Program is the only authorized agent for the assignment of SCAT
codes to system measurement requirements. For prime systems not previously reviewed or test equipment not
previously assigned a SCAT code, requests must be forwarded to the TMDE Program Office using an eCalibration
and Measurement Requirements Summary (CMRS), DD Form 1426. If the request cannot be matched to approved
NAVSEA GPETE and the associated SCAT code assignment, the results will be forwarded back to the requesting
Program Office and In-Service Engineering Agent (ISEA) with a SCAT code assignment under Special Purpose
Electrical/Electronic Test Equipment (SPETE). It must be understood that a SPETE SCAT assignment requires the
requesting Program Office/ISEA to provide all life cycle support including calibration support development to
maintain the viability of the instrument until such time as it is replaced or retired.
The NAVSEA TMDE index (TMDE-I) is a guide and reference for the identification of GPETE and SPETE, which
has been assigned a Sub-Category (SCAT) code. The TMDE-I allows cross-reference searches to be accomplished
by: SCAT code; model number; prime system; ship type and hull number. The TMDE-I is distributed semiannually; copies are available upon request from the TMDE HELP email: NAVSEA GPETE HELP@navy.mil.
The TMDE-I should be used in conjunction with the allowancing document known as the Ship/Shore Portable
Electrical/Electronic Test Equipment Requirements List (SPETERL). The TMDE-I does not under any
circumstance supersede or modify the SPETERL, nor does it authorize the procurement or requisitioning of items
not listed in the SPETERL.
The SPETERL is the authoritative allowance document that details onboard prime systems for a specific Naval ship
or activity. The SPETERL thereby establishes the test equipment configuration to support preventive and corrective
maintenance for those subsystems and associated equipments (MRC test equipment requirements must be
synchronized with the SPETERL). The listed test equipment (with exception of SPETE), is considered GPETE and
supports multiple systems installed onboard ships and shore stations. The listed GPETE (and SPETE) quantities
within the SPETERL are used to maintain an onboard inventory that adequately supports measurement
requirements. GPETE quantities determined as insufficient or excessive are addressed via the Allowance Change
Request (ACR), Naval Supply Systems Command (NAVSUP) Form 1220-2 and submitted through the respective
chain of command to the appropriate Fleet Type Commander. Requests for SPETERL reports can be made to the
TMDE Program Office via the Help Desk email: NAVSEA GPETE HELP@,navy.mil.
(b)
Category 2 - Consumables. Consumables constitute a majority of materials required to support
maintenance. Category 2 includes a wide range of administrative and housekeeping items which
may or may not be consumed in use. Some consumable items (grease, oils, and solvents) are
consumed each time the maintenance action is performed whereas others (buckets, funnels and
ladders) are not. Tools are not included in category 2 even though some tools may fit the general
description of a consumable item. Examples of consumable items include ropes, rags, oil,
cleaning solvents, brushes, corrosion protection agents, sealants, and protective coatings. By
definition, any item appearing on an Allowance Parts List (APL) is considered a repair part
(Category 3).
(c)
Category 3 - Parts. For purposes of MRC development, repair parts are defined as any item
which is an integral part of the equipment. For example, gaskets, mechanical seals, packing
material, O-rings and filters. In general, any item listed in a technical manual or drawing parts
list is considered a repair part. An official definition of a repair part is any item appearing on an
APL. The medium for identification of PMS repair part requirements to the Navy Supply System
is the APL. As Commercial Off The Shelf (COTS) equipment is procured, APL's are not always
developed. When no APL is available replacement parts used during maintenance shall be
identified by CAGE code and Part number.
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C h e c k t h e s o u r c e to v e r i f y t h a t this is t h e c u r r e n t v e r s i o n b e f o r e use.