PartsTable TECHNICAL DATA SHEET
NSN 5365-00-331-6688Government record, cited

Ring, Safety Coupling5365-00-331-6688

NSN 5365-00-331-6688 · NIIN 003316688 · Part number 6738451
Rolls-Royce Corporation · FSC 5365 — Bushings, Rings, Shims, and Spacers · FSG 53 — Hardware and Abrasives · CAGE 63005
Government record, cited
NSN 5365-00-331-6688 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-331-6688. Manufacturer of record part number: 6738451.
Also searched as  5365-00-331-6688 · 5365003316688 · NIIN 003316688 · 00-331-6688 · FSC 5365 Bushings, Rings, Shims, and Spacers · CAGE 63005 · 6738451
Nearby stock numbers  ·
Features
  • Ring,safety Coupling — FSC 5365
  • 1 manufacturer part number on file
  • Manufacturer of record: Rolls-Royce Corporation
Identification
  • NSN: 5365-00-331-6688
  • NIIN: 003316688
  • FSC: 5365 — Bushings, Rings, Shims, and Spacers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 6738451
  • Manufacturer: Rolls-Royce Corporation
General Description

The Ring,safety Coupling, cataloged under National Stock Number 5365-00-331-6688, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-00-331-6688
Primary Part Number6738451
Item NameRing,safety Coupling
FSC / FSG5365 / 53 — Bushings, Rings, Shims, and Spacers
ManufacturerRolls-Royce Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeF
Cross-Reference Index
Part NumberManufacturer
6738451 PRIMARY Rolls-Royce Corporation (USA)
Reference documents
ReferenceMeaning
6738451 5/9 Secondary reference
Allison Transmission Inc Dba Allison Transmission, Inc
6738451 5/9 Secondary reference
General Motors Corp
No interchangeability data on file.
Other items in FSC 5365 — Bushings, Rings, Shims, and Spacers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5365-00-000-6078
5365-00-000-6078 · Item name not on file
5365-00-000-7436
5365-00-000-7436 · Item name not on file
5365-00-001-1292
PLUG,MACHINE THREAD
5365-00-001-1365
5365-00-001-1365 · Item name not on file
5365-00-001-1841
RING,TORQUE,TUBE,INBOARD,RUDDER
5365-00-001-1915
5365-00-001-1915 · Item name not on file
5365-00-001-1916
5365-00-001-1916 · Item name not on file
5365-00-001-1940
5365-00-001-1940 · Item name not on file

Frequently Asked Questions

What is NSN 5365-00-331-6688?

NSN 5365-00-331-6688 is a Ring,safety Coupling, manufactured by Rolls-Royce Corporation, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.

What part numbers are listed for NSN 5365-00-331-6688?

NSN 5365-00-331-6688 has 1 manufacturer part number on file: 6738451 (Rolls-Royce Corporation).

What are the specifications of 6738451?

Key specifications for 6738451: End Item Identification: T-56 AIRCRAFT ENGINE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5365-00-331-6688 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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