The Ring,retaining, cataloged under National Stock Number 5325-01-125-0508, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-125-0508 |
| Primary Part Number | 1534AS155 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.290 INCHES NOMINAL IN |
| Major Thickness | 0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN |
| Inside Diameter | 0.119 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | CLOVER |
| Material | STEEL COMP 631 |
| 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 |
|---|---|
| 1534AS155 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| NS103420-3 | 3/2 Design control — primary reference U.S. Government activity |
| S00463-3 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies, Llc Dba PB Fasteners |
| C013546-1 | 1/2 Source control — Government-approved source U.S. Government activity |
| C013546-1 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
NSN 5325-01-125-0508 is a Ring,retaining, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-125-0508 has 1 manufacturer part number on file: 1534AS155 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-669-4243. Verify interchangeability with system specifications before substitution.
Key specifications for 1534AS155: Usage Design: INTERNAL; Material Document and Classification: AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 0.290 INCHES NOMINAL IN. 9 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.