The Ring,retaining, cataloged under National Stock Number 5325-01-176-6138, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Div Huck Products Division. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-176-6138 |
| Primary Part Number | D10447 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Huck International, Inc. Div Huck Products Division |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Surface Treatment Document and Classification | QQ-P-416, TYPE 2, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Major Thickness | 0.011 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN |
| Inside Diameter | 0.351 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | STEEL COMP 631 |
| 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 |
|---|---|
| D10447 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| D1044 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| H960007-001C | 7/2 Vendor item drawing reference U.S. Government activity |
| D10447 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-176-6138 is a Ring,retaining, manufactured by Huck International, Inc. Div Huck Products Division, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-176-6138 has 2 manufacturer part numbers on file: D10447 (Huck International, Inc. Div Huck Products Division), D1044 (Howmet Global Fastening Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-199-8767, 6520-01-721-1860. Verify interchangeability with system specifications before substitution.
Key specifications for D10447: Usage Design: INTERNAL; Surface Treatment Document and Classification: QQ-P-416, TYPE 2, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE; End Style: 90 DEGREE PARALLEL; Material Document and Classification: AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE. 12 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.