The Spacer,sleeve, cataloged under National Stock Number 5365-00-941-7399, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is A.w. Mack Manufacturing Co., Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-941-7399 |
| Primary Part Number | 510275 |
| Item Name | Spacer,sleeve |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | A.w. Mack Manufacturing Co., Inc. |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.1980 INCHES MINIMUM AND 0.2130 INCHES MAXIMUM IN |
| Material | STEEL COMP 410 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 |
|---|---|
| 510275 PRIMARY | A.w. Mack Manufacturing Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 510275 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 510275 | 5/9 Secondary reference Cooper Industries Inc Cooper Petroleum Equipment Div Sunnyvale Operation |
| 510275 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 510275 | 5/9 Secondary reference Comet Mfg Co Inc |
| 510275 | 5/2 Secondary reference U.S. Government activity |
NSN 5365-00-941-7399 is a Spacer,sleeve, manufactured by A.w. Mack Manufacturing Co., Inc., classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-941-7399 has 1 manufacturer part number on file: 510275 (A.w. Mack Manufacturing Co., Inc.).
Key specifications for 510275: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 7 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.