The Spacer,sleeve, cataloged under National Stock Number 5365-01-059-6521, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-059-6521 |
| Primary Part Number | PWA51920-7 |
| Item Name | Spacer,sleeve |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Hardness Rating | 62.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | AISI 01 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.5300 INCHES MINIMUM AND 0.5350 INCHES MAXIMUM IN |
| Material | STEEL COMP O1 OVERALL |
| 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 |
|---|---|
| PWA51920-7 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5365-01-059-6521 is a Spacer,sleeve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-059-6521 has 1 manufacturer part number on file: PWA51920-7 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA51920-7: Corner Shape: SQUARE ALL CORNERS; Hardness Rating: 62.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: AISI 01 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 6 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.