PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4000-137-SS2Ring,retaining

Truarc Co Llc · NSN 5325-00-664-3048 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-664-3048 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-664-3048. Primary manufacturer part number: 4000-137-SS2.
Features
  • Ring,retaining — FSC 5325
  • Major Thickness: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Document and Classification: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 632
  • Surface Treatment: PASSIVATE
  • Outside Diameter: 1.476 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN
  • Ring Style: INTERNAL INVERTED LUGS
Applications
  • Applications requiring Steel Comp 632 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-664-3048, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Truarc Co Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-664-3048
Primary Part Number4000-137-SS2
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTruarc Co Llc
StatusACTIVE
Major Thickness0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationAMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 632
Surface TreatmentPASSIVATE
Outside Diameter1.476 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN
Ring StyleINTERNAL INVERTED LUGS
Casehardening IndicatorNOT CASEHARDENED
Usage DesignINTERNAL
Material Hardness Rating44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6150-00-611-0432403593-1 INTERCHANGEABLE
Wiring Harness
Lockheed Martin Corp
6685-00-805-925241825 INTERCHANGEABLE
Bracket Assy
Honeywell International, Inc Div Aerospace-Tucson
5950-00-945-7458SM-D-552155 INTERCHANGEABLE
Transformer,discriminator
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5995-00-964-333641825 INTERCHANGEABLE
Cable Assembly,power,electrical
Unison Industries Llc
6515-01-607-561841825 INTERCHANGEABLE
Chest Roll Gell Pos
Xodus Medical, Inc.
Cross-Reference Index
Part NumberManufacturer
4000-137-SS2 Truarc Co Llc (USA)
5008-137H Rotor Clip Company, Inc. (USA)
5008-137H Truarc Company Llc Dba Waldes Truarc (USA)
MS16627-4137 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
12Z5014-134 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
41825 Triumph Engine Control Systems Llc (USA)
Related Parts
6150-00-611-0432INTERCHANGEABLE
WIRING HARNESS
403593-1
6685-00-805-9252INTERCHANGEABLE
BRACKET ASSY
41825
5950-00-945-7458INTERCHANGEABLE
TRANSFORMER,DISCRIMINATOR
SM-D-552155
5995-00-964-3336INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
41825
6515-01-607-5618INTERCHANGEABLE
CHEST ROLL GELL POS
41825

Frequently Asked Questions

What is NSN 5325-00-664-3048?

NSN 5325-00-664-3048 is a Ring,retaining, manufactured by Truarc Co Llc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-664-3048?

NSN 5325-00-664-3048 has 6 cross-referenced part numbers: 4000-137-SS2 (Truarc Co Llc), 5008-137H (Rotor Clip Company, Inc.), 5008-137H (Truarc Company Llc Dba Waldes Truarc), MS16627-4137 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 12Z5014-134 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 1 more.

What NSN replaces 5325-00-664-3048?

There are 5 known substitutes for 5325-00-664-3048: 6150-00-611-0432, 6685-00-805-9252, 5950-00-945-7458 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4000-137-SS2?

Key specifications for 4000-137-SS2: Major Thickness: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Material Document and Classification: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL COMP 632. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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