Seat, Retainer4820-01-068-4738

NSN 4820-01-068-4738 · NIIN 010684738

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-068-4738 · 4820010684738 · NIIN 010684738 · 01-068-4738 · FSC 4820 Valves, Nonpowered · 256202 PIECE 10 · 845-2180761 PIECE NO. 10CP · 2640-674X1 PIECE NO. 10CP · 2640-674X1 PIECE NO. 10 · 845-2180761 PIECE NO. 10

Nearby stock numbers ← 4820-01-068-4737 · 4820-01-068-4739 →

4820-01-068-4738 — Valves, Nonpowered

Features

Seat,retainer — FSC 4820
Criticality Code Justification: ZZZY
Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330

Identification

NSN: 4820-01-068-4738
NIIN: 010684738
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Seat,retainer, cataloged under National Stock Number 4820-01-068-4738, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-068-4738
Item Name	Seat,retainer
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Criticality Code Justification	ZZZY
Reference Number Differentiating Characteristics	CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
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
256202 PIECE 10	5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding
845-2180761 PIECE NO. 10CP	5/1 Secondary reference Naval Inventory Control Point Mechanicsburg
2640-674X1 PIECE NO. 10CP	5/1 Secondary reference Naval Inventory Control Point Mechanicsburg
2640-674X1 PIECE NO. 10	5/1 Secondary reference U.S. Government activity
845-2180761 PIECE NO. 10	3/1 Design control — primary reference Naval Sea Systems Command

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 4820-01-068-4738?

NSN 4820-01-068-4738 is a Seat,retainer, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-068-4738?

Key specifications for 4820-01-068-4738: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-068-4738 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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