The Hose,air Duct, cataloged under National Stock Number 4720-01-063-4870, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-063-4870 |
| Primary Part Number | GH510A4-29 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Measuring Method and Length | 14.500 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | ALLOY 410 NATIONAL SPEC SINGLE MATERIAL RESPONSE REINFORCING WIRE |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.056 INCHES NOMINAL IN |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Nondefinitive Spec/std Data | 3 CLASS AND 4 TYPE |
| Inside Diameter | 1.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.550 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 1.000 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RESIN FIRST PLY |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | FIBERGLASS AND RESIN SECOND 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 |
|---|---|
| GH510A4-29 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GH510A | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| FT-2926-4-29 | 5/9 Secondary reference U.S. Government activity |
| AD1108-4-29 | 5/9 Secondary reference Porter H K Co Inc Pittsburgh Pa |
NSN 4720-01-063-4870 is a Hose,air Duct, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-063-4870 has 1 manufacturer part number on file: GH510A4-29 (Northrop Grumman Systems Corporation).
5 possible matches (shared part number, not a government interchangeability claim): 4720-01-064-2828, 4720-01-119-3787, 4720-01-184-9476. Verify interchangeability with system specifications before substitution.
Key specifications for GH510A4-29: Measuring Method and Length: 14.500 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 15 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.