The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-513-6574, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-513-6574 |
| Primary Part Number | 801-6640963 ASSY 98 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| 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 |
|---|---|
| 514-6985505-F520 | Naval Sea Systems Command (USA) |
| 514-6985505-F527 | Naval Sea Systems Command (USA) |
| 514-6985505-F528 | Naval Sea Systems Command (USA) |
| 801-6640963 ASSY 98 | Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (USA) |
| 801-6640963 ASSY 98 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H645-5401-F528 | 5/2 Secondary reference U.S. Government activity |
| 2633-225-01 ASSY 98 | 3/2 Design control — primary reference U.S. Government activity |
| 6985505 REV B | D/9 Drawing number reference only Naval Sea Systems Command |
| H645-5401-F520 | 5/2 Secondary reference U.S. Government activity |
| H645-5401-F527 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-513-6574 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-513-6574 has 5 manufacturer part numbers on file: 514-6985505-F520 (Naval Sea Systems Command), 514-6985505-F527 (Naval Sea Systems Command), 514-6985505-F528 (Naval Sea Systems Command), 801-6640963 ASSY 98 (Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc), 801-6640963 ASSY 98 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-513-6584, 4720-01-513-7001. Verify interchangeability with system specifications before substitution.
Key specifications for 801-6640963 ASSY 98: Special Features: ASSY IS 90 DEG SHOULDERED HOSE, SIZE 0.625 WITH END X AND Y BOTH 23.300 LONG; HOSE IS "G" ON PAGES 5 AND 12 ON 263322501-0098; Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Part Name Assigned by Controlling Agency: HOSE ASSY, 90, SLDR; End Item Identification: MISC PARTS LIST FOR AC-CW, PIPING AIR CONDITIONING R-134A ENGINE ROOM, VIRGINIA CLASS SSN A. 1 specification is 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.