The Clamp,loop, cataloged under National Stock Number 5340-00-663-0840, 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 14 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-663-0840 |
| Primary Part Number | AS21919WDG27 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BAND |
| Cushioning Environmental Protection | WEATHER RESISTANT |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | AMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Material Document and Classification | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND |
| Diameter | 0.204 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.562 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 4 TYPE AND A CLASS |
| Surface Treatment | CHROMATE BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.329 INCHES MINIMUM AND 1.359 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR CUSHION |
| Loop Inside Diameter | 1.673 INCHES MINIMUM AND 1.703 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 |
|---|---|
| AS21919WDG27 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 946351-1827 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 5340PL0845479 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS21919WDG27 | 5/9 Secondary reference U.S. Government activity |
| AS21919WDG27 | 3/9 Design control — primary reference U.S. Government activity |
| SAE-AS21919 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 5340PL1730179 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10335355 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-00-663-0840 is a Clamp,loop, manufactured by Sae International Dba Sae International, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-663-0840 has 1 manufacturer part number on file: AS21919WDG27 (Sae International Dba Sae International).
Key specifications for AS21919WDG27: Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BAND; Cushioning Environmental Protection: WEATHER RESISTANT; Style Designator: OFFSET MOUNT; Material Document and Classification: AMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION. 14 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.