The Ring,retaining, cataloged under National Stock Number 5325-00-281-2926, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Triumph/magna Mixer Co. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-281-2926 |
| Primary Part Number | 5100-112 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Triumph/magna Mixer Co |
| 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 | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Inside Diameter | 1.026 INCHES MINIMUM AND 1.051 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 |
|---|---|
| 5100-112 | Triumph/magna Mixer Co (USA) |
| Reference | Meaning |
|---|---|
| 488-3801-71271PC | 5/2 Secondary reference U.S. Government activity |
| 10489469 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5100-112MD0RZD | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
| 5100-112MD0RZD | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| M4 | 5/2 Secondary reference U.S. Government activity |
| 608-1373 | 5/9 Secondary reference Apollo Audio-Visual |
| 1349-488PCM4 | 5/2 Secondary reference U.S. Government activity |
| 564K218 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-00-281-2926 is a Ring,retaining, manufactured by Triumph/magna Mixer Co, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-281-2926 has 1 manufacturer part number on file: 5100-112 (Triumph/magna Mixer Co).
6 possible matches (shared part number, not a government interchangeability claim): 5325-00-803-7319, 5325-00-803-9975, 3110-01-160-9663. Verify interchangeability with system specifications before substitution.
Key specifications for 5100-112: 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.