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NSN 4820-01-172-5983Government record, cited

Seat, Valve4820-01-172-5983

NSN 4820-01-172-5983 · NIIN 011725983

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-172-5983 · 4820011725983 · NIIN 011725983 · 01-172-5983 · FSC 4820 Valves, Nonpowered · 2285-299 PIECE 4 · 256121PIECE14

Nearby stock numbers ← 4820-01-172-5975 · 4820-01-172-5984 Seat, Valve →

4820-01-172-5983 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material Document and Classification: DELRIN AF FIBER RESIN DE588 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Material: PLASTIC ACETAL AND PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR THE SUBMARINE SAFETY PROGRAM

Identification

NSN: 4820-01-172-5983
NIIN: 011725983
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-172-5983, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-172-5983
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Material Document and Classification	DELRIN AF FIBER RESIN DE588 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Material	PLASTIC ACETAL AND PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Reference Number Differentiating Characteristics	QUALITY ASSURANCE TESTED FOR THE SUBMARINE SAFETY PROGRAM

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL B — Remove Demilitarization Key Points
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	S

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
2285-299 PIECE 4	5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding
256121PIECE14	3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-172-5983?

NSN 4820-01-172-5983 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-172-5983?

Key specifications for 4820-01-172-5983: Material Document and Classification: DELRIN AF FIBER RESIN DE588 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Material: PLASTIC ACETAL AND PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR THE SUBMARINE SAFETY PROGRAM. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-172-5983 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.

What is the DEMIL code for NSN 4820-01-172-5983?

NSN 4820-01-172-5983 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.

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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