The Ring,retaining, cataloged under National Stock Number 5325-01-326-1353, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-326-1353 |
| Primary Part Number | UR-700-S |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Strength Rating | ERR-060 |
| Material Document and Classification | SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 3RD MATERIAL RESPONSE AND AMS 5688 ASSN STD 4TH MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 5TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 7.247 INCHES MINIMUM AND 7.292 INCHES MAXIMUM IN |
| Major Thickness | 0.059 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Inside Diameter | 6.717 INCHES MINIMUM AND 6.762 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| UR-700-S | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| VH-700-S02 | Smalley Steel Ring Co. (USA) |
| Reference | Meaning |
|---|---|
| UR-700-S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-326-1353 is a Ring,retaining, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-326-1353 has 2 manufacturer part numbers on file: UR-700-S (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), VH-700-S02 (Smalley Steel Ring Co.).
Key specifications for UR-700-S: Usage Design: INTERNAL; Strength Rating: ERR-060; Material Document and Classification: SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 3RD MATERIAL RESPONSE AND AMS 5688 ASSN STD 4TH MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 5TH MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 10 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.