The Spacer,ring, cataloged under National Stock Number 5365-01-287-9879, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Support Services Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-287-9879 |
| Primary Part Number | 1D22958H01 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Outside Diameter | 21.790 INCHES MINIMUM AND 21.830 INCHES MAXIMUM IN |
| Overall Thickness | 0.690 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Inside Diameter | 16.230 INCHES MINIMUM AND 16.270 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM |
| 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 |
|---|---|
| 1D22958H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 1D22958H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5365-01-287-9879 is a Spacer,ring, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-287-9879 has 1 manufacturer part number on file: 1D22958H01 (Northrop Grumman Support Services Corp).
Key specifications for 1D22958H01: Outside Diameter: 21.790 INCHES MINIMUM AND 21.830 INCHES MAXIMUM IN; Overall Thickness: 0.690 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN; Inside Diameter: 16.230 INCHES MINIMUM AND 16.270 INCHES MAXIMUM IN; Special Features: HAS FLANGE AROUND DIA. OF SPACER 1.448 IN. WIDE W/32 BOLT HOLES EQUALLY SPACED; DIA. OF BOLT HOLES-0.217 IN. MIN. AND 0.223 IN. MAX. W/COUNTERBORE DIA.-0.560 IN. MIN. AND 0.580 IN. MAX. AND 0.290 IN. DEEP 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.