The Clamp,loop, cataloged under National Stock Number 5340-01-566-1903, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-566-1903 |
| Primary Part Number | AS21919WCJ20 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MAS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE BAND |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND |
| Material Document and Classification | MIL-R-25988, TYII, CL1, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE CUSHION |
| Diameter | 0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.311 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.092 INCHES NOMINAL IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ CUSHION |
| Material | STEEL COMP 321 BAND |
| Loop Inside Diameter | 1.250 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 |
|---|---|
| AS21919WCJ20 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS21919WCJ20 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-566-1903 is a Clamp,loop, manufactured by Sae International Dba Sae International, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-566-1903 has 1 manufacturer part number on file: AS21919WCJ20 (Sae International Dba Sae International).
Key specifications for AS21919WCJ20: Surface Treatment Document and Classification: MAS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE BAND; Style Designator: OFFSET MOUNT; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE BAND; Material Document and Classification: MIL-R-25988, TYII, CL1, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE CUSHION. 13 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.