The Ring,lock Case, cataloged under National Stock Number 5365-00-181-4535, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5365-00-181-4535 |
| Primary Part Number | AR-377-108 |
| Item Name | Ring,lock Case |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS,2.242 MIN,2.250 MAX IN. OD,1.969 IN. DIA 1ST HOLE SPACING,1.250 IN. ID BOLT CIRCLE,FOUR 0.251 IN. DIA HOLES FOR SLOTTING,SLOT OPENING 0.050 IN. W,0.062 R 2 PLACES,0.025 R 1 PLACE 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 |
|---|---|
| AR-377-108 PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
| Reference | Meaning |
|---|---|
| AR-337 | 5/9 Secondary reference Ametek, Inc. Div Aerospace & Defense |
NSN 5365-00-181-4535 is a Ring,lock Case, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-181-4535 has 1 manufacturer part number on file: AR-377-108 (Ametek, Inc. Div Aerospace & Defense).
1 possible match (shared part number, not a government interchangeability claim): 5935-00-809-8939. Verify interchangeability with system specifications before substitution.
Key specifications for AR-377-108: General Characteristics Item Description: BRASS,2.242 MIN,2.250 MAX IN. OD,1.969 IN. DIA 1ST HOLE SPACING,1.250 IN. ID BOLT CIRCLE,FOUR 0.251 IN. DIA HOLES FOR SLOTTING,SLOT OPENING 0.050 IN. W,0.062 R 2 PLACES,0.025 R 1 PLACE IN. 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.