The Hose,air Duct, cataloged under National Stock Number 4720-01-184-9476, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-184-9476 |
| Primary Part Number | GH510A |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Measuring Method and Length | 9.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 3.750 INCHES IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | QQ-W-423,FORM 1,COMP 302,COND 3 FED SPEC SINGLE MATERIAL RESPONSE SECOND PLY |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | ABRASION RESISTANT |
| Specification/standard Data | 81349-MIL-H-8796 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 4 TYPE AND 3 CLASS |
| Inside Diameter | 1.250 INCHES NOMINAL FIRST END IN |
| End Overall Length | 2.000 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 1.250 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RESIN FIRST PLY |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR FOURTH PLY |
| Material | STEEL CORROSION RESISTING SECOND PLY |
| Material | FIBERGLASS AND RESIN THIRD PLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| GH510A PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS8796 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MIL-H-8796 | 5/9 Secondary reference U.S. Government activity |
| AD1108-5-18 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-184-9476 is a Hose,air Duct, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-184-9476 has 1 manufacturer part number on file: GH510A (Northrop Grumman Systems Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-266-4257, 4720-01-281-5219. Verify interchangeability with system specifications before substitution.
Key specifications for GH510A: Measuring Method and Length: 9.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 3.750 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.