The Valve,ball, cataloged under National Stock Number 4820-01-554-3794, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Us Inc. Div Flowserve Cookeville Valve Operation. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-554-3794 |
| Primary Part Number | 1-1/2"CPT44 6 6PT SPECA120 N1533 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Us Inc. Div Flowserve Cookeville Valve Operation |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Valve Size | 1.500 INCHES IN |
| Face to Face Distance | 8.000 INCHES IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Valve Operation Method | ELECTRIC MOTOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1-1/2"CPT44 6 6PT SPECA120 N1533 PRIMARY | Flowserve Us Inc. Div Flowserve Cookeville Valve Operation (USA) |
| Reference | Meaning |
|---|---|
| VP7410 | D/9 Drawing number reference only Flowserve Us Inc. Div Flowserve Cookeville Valve Operation |
| VP6896B | D/9 Drawing number reference only Flowserve Us Inc. Div Flowserve Cookeville Valve Operation |
NSN 4820-01-554-3794 is a Valve,ball, manufactured by Flowserve Us Inc. Div Flowserve Cookeville Valve Operation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-554-3794 has 1 manufacturer part number on file: 1-1/2"CPT44 6 6PT SPECA120 N1533 (Flowserve Us Inc. Div Flowserve Cookeville Valve Operation).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-554-3954, 3120-01-555-0419. Verify interchangeability with system specifications before substitution.
Key specifications for 1-1/2"CPT44 6 6PT SPECA120 N1533: Flange Shape: RECTANGULAR WITH HOLES ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU FLANGED ENDS; Valve Size: 1.500 INCHES IN. 7 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.
NSN 4820-01-554-3794 has DEMIL Code D. 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.