The Clamp,loop, cataloged under National Stock Number 5340-01-227-8742, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Department of the Army Hq United States Army Communications Research and Development Command. Government technical data includes 11 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-227-8742 |
| Primary Part Number | B4039197 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Department of the Army Hq United States Army Communications Research and Development Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.164 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 0.820 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 32 |
| Tongue Hole Type | ROUND, THREADED AND ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.500 INCHES NOMINAL IN |
| Material | STEEL COMP 303 OVERALL |
| Loop Inside Diameter | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM 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 |
|---|---|
| B4039197 PRIMARY | Department of the Army Hq United States Army Communications Research and Development Command (USA) |
NSN 5340-01-227-8742 is a Clamp,loop, manufactured by Department of the Army Hq United States Army Communications Research and Development Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-227-8742 has 1 manufacturer part number on file: B4039197 (Department of the Army Hq United States Army Communications Research and Development Command).
Key specifications for B4039197: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.164 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN; Overall Width: 0.250 INCHES NOMINAL IN. 11 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.