The Clamp,loop, cataloged under National Stock Number 5340-01-226-9173, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-226-9173 |
| Primary Part Number | 5191421 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Lug Hole Diameter | 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN |
| Cushioning Environmental Protection | ABRASION RESISTANT AND FLAME RESISTANT |
| Center to Center Distance Between Loop and Lug Hole | 0.672 INCHES MINIMUM AND 0.735 INCHES MAXIMUM IN |
| Fastening Device Type | SELF-LOCKING HEXAGON NUT |
| Distance From Outer Edge of Lug to Hole Center | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Style Designator | RIGHT HAND CLAMP & BRACKET |
| Material Document and Classification | AMS 3303 FED SPEC SINGLE MATERIAL RESPONSE CUSHION |
| Material Document and Classification | QQ-A-250/5,T3 FED SPEC ALL MATERIAL RESPONSES OR QQ-A-250/5,T4 FED SPEC ALL MATERIAL RESPONSES BAND |
| Diameter | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Material Thickness | 0.051 INCHES NOMINAL IN |
| Lug Width | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 0.891 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN |
| Integral Nut Type and Quantity | 1 SELF-LOCKING EQUAL LENGTH TONGUES |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.641 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q CUSHION |
| Material | ALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 1230 BAND |
| Loop Inside Diameter | 0.469 INCHES MINIMUM AND 0.531 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 |
|---|---|
| 5191421 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 758E81HT | 3/2 Design control — primary reference U.S. Government activity |
| 5191421 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5340-01-226-9173 is a Clamp,loop, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-226-9173 has 1 manufacturer part number on file: 5191421 (Naval Sea Systems Command).
Key specifications for 5191421: Lug Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN; Cushioning Environmental Protection: ABRASION RESISTANT AND FLAME RESISTANT; Center to Center Distance Between Loop and Lug Hole: 0.672 INCHES MINIMUM AND 0.735 INCHES MAXIMUM IN; Fastening Device Type: SELF-LOCKING HEXAGON NUT. 18 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.