The Clamp,loop, cataloged under National Stock Number 5340-01-321-0611, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-321-0611 |
| Primary Part Number | 07A221-1090T |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BOLT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND |
| Precious Material | SILVER |
| Fastening Device Type | T-BOLT |
| Style Designator | T-BOLT |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE BOLT |
| Material Document and Classification | AMS 5510 ASSN STD ALL MATERIAL RESPONSES OR AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE BAND |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Nominal Thread Size | 0.190 INCHES IN |
| Surface Treatment | SILVER NUT |
| Surface Treatment | PASSIVATE BOLT |
| Surface Treatment | PASSIVATE BAND |
| Precious Material and Location | NUT SILVER |
| Integral Nut Type and Quantity | 1 SELF-LOCKING LUG |
| Thread Quantity Per Inch | 32 |
| Tongue Hole Type | ROUND, THREADED |
| Material | IRON ALLOY 660 NUT |
| Material | IRON ALLOY 660 BOLT |
| Material | STEEL COMP 321 OR STEEL COMP 347 OR IRON ALLOY 660 BAND |
| Loop Inside Diameter | 10.900 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 |
|---|---|
| 68516-1090 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| BC1150-1090-T | Voss Industries, Llc (USA) |
| 07A221-1090T PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 3140AC109 | 5/2 Secondary reference U.S. Government activity |
| 314OAC1090 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-321-0611 is a Clamp,loop, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-321-0611 has 3 manufacturer part numbers on file: 68516-1090 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), BC1150-1090-T (Voss Industries, Llc), 07A221-1090T (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 07A221-1090T: Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE NUT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BOLT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND; Precious Material: SILVER. 22 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.