The Ring,retaining, cataloged under National Stock Number 5325-00-772-3717, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 11 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-772-3717 |
| Primary Part Number | 549773 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Material Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | D SHAP BELOW INSIDE PERIPHERY |
| Material Document and Classification | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 6.185 INCHES MINIMUM AND 6.305 INCHES MAXIMUM IN |
| Major Thickness | 0.369 INCHES NOMINAL IN |
| Inside Diameter | 5.995 INCHES MINIMUM AND 6.095 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | CADMIUM |
| Material | STEEL COMP 4340 |
| 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 |
|---|---|
| 549773 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 549773 | British Automotive Supply Sp. Z O.o. (POL) |
| Reference | Meaning |
|---|---|
| 549773 | 5/9 Secondary reference Pacific Sky Supply, Inc. Dba Pacific Sky Supply Inc |
| 549773 | 5/9 Secondary reference Preci-Manufacturing, Incorporated |
| 5325PL0402299 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 549773 | 5/9 Secondary reference Reliable Manufacturing Company, Incorporated Div N/a |
NSN 5325-00-772-3717 is a Ring,retaining, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-772-3717 has 2 manufacturer part numbers on file: 549773 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 549773 (British Automotive Supply Sp. Z O.o.).
Key specifications for 549773: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: D SHAP BELOW INSIDE PERIPHERY; Material Document and Classification: AMS 6415 ASSN STD 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.