The Gap,band, cataloged under National Stock Number 1560-01-232-6803, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1560-01-232-6803 |
| Primary Part Number | A51B21037-56 |
| Item Name | Gap,band |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-250/4,ALLOY 2024,T851; ANODIZED,MIL-A-8625,TYPE 2,CLASS 1; EPOXY POLYAMIDE COATING MIL-P-23377 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A51B21037-56 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51B21037-56 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51B21037-56 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1560-01-232-6803 is a Gap,band, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-232-6803 has 1 manufacturer part number on file: A51B21037-56 (Northrop Grumman Systems Corporation).
Key specifications for A51B21037-56: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-250/4,ALLOY 2024,T851; ANODIZED,MIL-A-8625,TYPE 2,CLASS 1; EPOXY POLYAMIDE COATING MIL-P-23377; End Item Identification: AIRCRAFT,F-14A A. 1 specification is 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.
NSN 1560-01-232-6803 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.