The Ring,seal,muzzle, cataloged under National Stock Number 5365-01-274-3401, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-274-3401 |
| Primary Part Number | 176C2787 |
| Item Name | Ring,seal,muzzle |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL,CRE AMS 5659 OR AMS 5862 (15-5PH) OR STEEL,CRE AMS 5643 OR AMS 5604 (17-4PH); 5.838 IN. DIA; 0.750 IN. THK IN |
| 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 |
|---|---|
| 176C2787 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| A51K9060-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51K9060-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5365-01-274-3401 is a Ring,seal,muzzle, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-274-3401 has 2 manufacturer part numbers on file: 176C2787 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems), A51K9060-1 (Northrop Grumman Systems Corporation).
Key specifications for 176C2787: General Characteristics Item Description: MATERIAL STEEL,CRE AMS 5659 OR AMS 5862 (15-5PH) OR STEEL,CRE AMS 5643 OR AMS 5604 (17-4PH); 5.838 IN. DIA; 0.750 IN. THK IN; End Item Identification: F-14 ACFT. 1 specification is 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.