The Ring,retaining, cataloged under National Stock Number 5325-00-281-6677, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-281-6677 |
| Primary Part Number | 64-65-3 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.718 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN |
| Major Thickness | 0.059 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Inside Diameter | 1.538 INCHES MINIMUM AND 1.609 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | HOOKED WIRE |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 64-65-3 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| 8333159 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| LR116 | 5/9 Secondary reference Spx Corp |
| LR116 | 5/9 Secondary reference Bosch Automotive Service Solutions Inc. |
NSN 5325-00-281-6677 is a Ring,retaining, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-281-6677 has 2 manufacturer part numbers on file: 64-65-3 (Dresser Industries Inc Leroi Div), 8333159 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-215-8188, 2520-01-245-9207. Verify interchangeability with system specifications before substitution.
Key specifications for 64-65-3: Usage Design: INTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 1.718 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN; Major Thickness: 0.059 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.