The Clamp,loop, cataloged under National Stock Number 5340-01-220-9921, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Catamount Mfg Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Item Name | Clamp,loop |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Catamount Mfg Inc (CAGE 65664) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-220-9921 |
| Primary Part Number | F4NY-500-0-M |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Catamount Mfg Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| F4NY-500-0-M PRIMARY | Catamount Mfg Inc (USA) |
| Reference | Meaning |
|---|---|
| 2579174-26 | 7/2 Vendor item drawing reference Honeywell International Inc. Dba Honeywell International |
| 1/2-4-140 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-220-9921 is a Clamp,loop, manufactured by Catamount Mfg Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-220-9921 has 1 manufacturer part number on file: F4NY-500-0-M (Catamount Mfg Inc).
3 possible matches (shared part number, not a government interchangeability claim): 6530-01-339-7640, 7240-01-502-4390, 5930-01-590-9848. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). 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.