PartsTable TECHNICAL DATA SHEET

NSN 4820-01-185-3237Government record, cited

Seat, Valve4820-01-185-3237

NSN 4820-01-185-3237 · NIIN 011853237 · Part number D29886 1561FE PIECE 11 1IN

William Powell Company, the Dba Powell Valve Div the Starflo Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 48422

Government record, cited

NSN 4820-01-185-3237 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-185-3237. Manufacturer of record part number: D29886 1561FE PIECE 11 1IN.

Also searched as 4820-01-185-3237 · 4820011853237 · NIIN 011853237 · 01-185-3237 · FSC 4820 Valves, Nonpowered · CAGE 48422 · D29886 1561FE PIECE 11 1IN · D29886

Nearby stock numbers ← 4820-01-185-3234 · 4820-01-185-3238 →

4820-01-185-3237 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL COMP 416 OVERALL
Seating Surface Shape: FLAT
1 manufacturer part number on file
Manufacturer of record: William Powell Company, the Dba Powell Valve Div the Starflo Corporation

Identification

NSN: 4820-01-185-3237
NIIN: 011853237
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: D29886 1561FE PIECE 11 1IN
Manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-185-3237, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-185-3237
Primary Part Number	D29886 1561FE PIECE 11 1IN
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Status	ACTIVE
Material	STEEL COMP 416 OVERALL
Seating Surface Shape	FLAT

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 6

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-185-3255D29886 1560SWLDG PIECE 5 2IN POSSIBLE MATCH

CAP,VALVE

Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation

4820-01-185-3271D29886 1560SWLDG PIECE 9 2 IN POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation

4820-01-185-3272D29886 1561FE PIECE 9 1IN POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation

4820-01-192-3529D29886 1561 PIECE 11 2IN POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation

4820-01-192-3730D29886 1561 PIECE 9 2IN POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation

4820-01-289-1071PIECE E 63056 P200 POSSIBLE MATCH

CAP,VALVE

Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation

Cross-Reference Index

Part Number	Manufacturer
D29886 1561FE PIECE 11 1IN PRIMARY	William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)

Reference documents

Reference	Meaning
D29886	D/9 Drawing number reference only William Powell Company, the Dba Powell Valve Div the Starflo Corporation

Related Parts

4820-01-185-3255POSSIBLE MATCH

CAP,VALVE

D29886 1560SWLDG PIECE 5 2IN

4820-01-185-3271POSSIBLE MATCH

DISK,VALVE

D29886 1560SWLDG PIECE 9 2 IN

4820-01-185-3272POSSIBLE MATCH

DISK,VALVE

D29886 1561FE PIECE 9 1IN

4820-01-192-3529POSSIBLE MATCH

SEAT,VALVE

D29886 1561 PIECE 11 2IN

4820-01-192-3730POSSIBLE MATCH

DISK,VALVE

D29886 1561 PIECE 9 2IN

4820-01-289-1071POSSIBLE MATCH

CAP,VALVE

PIECE E 63056 P200

Frequently Asked Questions

What is NSN 4820-01-185-3237?

NSN 4820-01-185-3237 is a Seat,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-185-3237?

NSN 4820-01-185-3237 has 1 manufacturer part number on file: D29886 1561FE PIECE 11 1IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).

What NSN replaces 4820-01-185-3237?

6 possible matches (shared part number, not a government interchangeability claim): 4820-01-185-3255, 4820-01-185-3271, 4820-01-185-3272. Verify interchangeability with system specifications before substitution.

What are the specifications of D29886 1561FE PIECE 11 1IN?

Key specifications for D29886 1561FE PIECE 11 1IN: Material: STEEL COMP 416 OVERALL; Seating Surface Shape: FLAT. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-185-3237 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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