The Clamp,loop, cataloged under National Stock Number 5340-01-277-9970, 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 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-277-9970 |
| Primary Part Number | AS21919WCF21 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | AMS 3215 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Material Document and Classification | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 5510 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Diameter | 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| Distance From Loop Center to Tongue End | 1.342 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 1.109 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR CUSHION |
| Material | STEEL COMP 302 OR STEEL COMP 321 NUT |
| Loop Inside Diameter | 1.312 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 |
|---|---|
| AS21919WCF21 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS21919 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS21919WCF21 | 5/9 Secondary reference U.S. Government activity |
| MS21104C21 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AS21919WCF21 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-277-9970 is a Clamp,loop, manufactured by Sae International Dba Sae International, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-277-9970 has 1 manufacturer part number on file: AS21919WCF21 (Sae International Dba Sae International).
Key specifications for AS21919WCF21: Style Designator: OFFSET MOUNT; Material Document and Classification: AMS 3215 ASSN STD SINGLE MATERIAL RESPONSE CUSHION; Material Document and Classification: MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 5510 ASSN STD 2ND MATERIAL RESPONSE NUT; Diameter: 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM 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.