The Clamp,loop, cataloged under National Stock Number 5340-01-331-1389, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Catamount Mfg Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-331-1389 |
| Primary Part Number | F4NY-312BK-128 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Catamount Mfg Inc |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Material Document and Classification | ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.118 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| Material Thickness | 0.040 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 0.620 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.418 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Loop Inside Diameter | 0.312 INCHES NOMINAL IN |
| 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-312BK-128 PRIMARY | Catamount Mfg Inc (USA) |
| Reference | Meaning |
|---|---|
| 10113156 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2579174-16 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
NSN 5340-01-331-1389 is a Clamp,loop, manufactured by Catamount Mfg Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-331-1389 has 1 manufacturer part number on file: F4NY-312BK-128 (Catamount Mfg Inc).
Key specifications for F4NY-312BK-128: Style Designator: SINGLE LOOP; Material Document and Classification: ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.118 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN; Overall Width: 0.375 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
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.