The Spacer,ring, cataloged under National Stock Number 5365-01-487-4203, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Quality Assured Products Inc Dba Qa Products Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5365-01-487-4203 |
| Primary Part Number | 971398-AY1 PIECE 0T |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Quality Assured Products Inc Dba Qa Products Inc |
| Status | ACTIVE |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A515, GR 70 ASSN STD SINGLE MATERIAL RESPONSE |
| Inside Diameter | 4.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 971398-AY1 PIECE 0T PRIMARY | Quality Assured Products Inc Dba Qa Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 971398-AY1 | D/9 Drawing number reference only Quality Assured Products Inc Dba Qa Products Inc |
NSN 5365-01-487-4203 is a Spacer,ring, manufactured by Quality Assured Products Inc Dba Qa Products Inc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-487-4203 has 1 manufacturer part number on file: 971398-AY1 PIECE 0T (Quality Assured Products Inc Dba Qa Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-489-5444. Verify interchangeability with system specifications before substitution.
Key specifications for 971398-AY1 PIECE 0T: Outside Diameter: 4.750 INCHES NOMINAL IN; Overall Thickness: 0.250 INCHES NOMINAL IN; Material Document and Classification: ASTM A515, GR 70 ASSN STD SINGLE MATERIAL RESPONSE; Inside Diameter: 4.250 INCHES NOMINAL IN. 5 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.