The Ring,retaining, cataloged under National Stock Number 5325-01-446-9182, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Daimler Truck North America Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-446-9182 |
| Primary Part Number | GSN/B9971 00550 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Daimler Truck North America Llc |
| Status | ACTIVE |
| Material Hardness Rating | 42.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| End Style | D SHAPE ABOVE INSIDE PERIPHERY |
| Material Diameter | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Material Document and Classification | FED STD 66, COMP 1065 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1066 FED STD 2ND MATERIAL RESPONSE OR FED STD 66, COMP 1069 FED STD 3RD MATERIAL RESPONSE OR FED STD 66, COMP 1070 FED STD 4TH MATERIAL RESPONSE OR FED STD 66, COMP 1072 FED STD 5TH MATERIAL RESPONSE OR FED STD 66, COMP 1074 FED STD 6TH MATERIAL RESPONSE OR FED STD 66, COMP 1075 FED STD 7TH MATERIAL RESPONSE OR FED STD 66, COMP 1078 FED STD 8TH MATERIAL RESPONSE OR FED STD 66, COMP 1080 FED STD 9TH MATERIAL RESPONSE OR FED STD 66, COMP 1084 FED STD 10TH MATERIAL RESPONSE OR FED STD 66, COMP 1085 FED STD 11TH MATERIAL RESPONSE OR FED STD 66, COMP 1086 FED STD 12TH MATERIAL RESPONSE OR FED STD 66, COMP 1090 FED STD 13TH MATERIAL RESPONSE OR FED STD 66, COMP 1095 FED STD 14TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 5.700 INCHES MINIMUM AND 5.790 INCHES MAXIMUM IN |
| Inside Diameter | 5.280 INCHES MINIMUM AND 5.370 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090 OR STEEL COMP 1095 |
| 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 |
|---|---|
| GSN/B9971 00550 | Daimler Truck North America Llc (USA) |
| Reference | Meaning |
|---|---|
| B9971-00550 | 3/9 Design control — primary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
NSN 5325-01-446-9182 is a Ring,retaining, manufactured by Daimler Truck North America Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-446-9182 has 1 manufacturer part number on file: GSN/B9971 00550 (Daimler Truck North America Llc).
Key specifications for GSN/B9971 00550: Material Hardness Rating: 42.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; End Style: D SHAPE ABOVE INSIDE PERIPHERY; Material Diameter: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN. 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.