The Ring,retaining, cataloged under National Stock Number 5325-00-281-2929, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Knds Deutschland Gmbh & Co. Kg - Werk Kassel -. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-281-2929 |
| Primary Part Number | 25704-281541-07-0 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Knds Deutschland Gmbh & Co. Kg - Werk Kassel - |
| Status | ACTIVE |
| Material Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Strength Rating | ERR-060 |
| Material Document and Classification | QQ-S-633 AMEND 2,1060 TO 1074 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Inside Diameter | 1.426 INCHES MINIMUM AND 1.433 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | ZINC OR CADMIUM AND DICHROMATE |
| 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 |
|---|---|
| 25704-281541-07-0 | Knds Deutschland Gmbh & Co. Kg - Werk Kassel - (DEU) |
| 583391 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 25704-281541-07-0 | Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke (DEU) |
| 583391 | Liebherr-Aerospace Lindenberg Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 583391 | 5/9 Secondary reference Feinmechanische Werke Mainz Gmbh |
| 5100-156MD0RZD | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| 5100-156MD0RZD | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
NSN 5325-00-281-2929 is a Ring,retaining, manufactured by Knds Deutschland Gmbh & Co. Kg - Werk Kassel -, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-281-2929 has 4 manufacturer part numbers on file: 25704-281541-07-0 (Knds Deutschland Gmbh & Co. Kg - Werk Kassel -), 583391 (U S Army Tank Automotive Command Amsta-Im-Mm), 25704-281541-07-0 (Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke), 583391 (Liebherr-Aerospace Lindenberg Gmbh).
2 possible matches (shared part number, not a government interchangeability claim): 6105-00-498-9517, 5340-01-312-9986. Verify interchangeability with system specifications before substitution.
Key specifications for 25704-281541-07-0: Material Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Strength Rating: ERR-060; Material Document and Classification: QQ-S-633 AMEND 2,1060 TO 1074 FED SPEC SINGLE MATERIAL RESPONSE. 11 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.