PartsTable TECHNICAL DATA SHEET

NSN 4820-01-257-4941Government record, cited

Body, Valve4820-01-257-4941

NSN 4820-01-257-4941 · NIIN 012574941 · Part number L5351319-011

The Boeing Company Div Legacy Am&m · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 43999

Government record, cited

NSN 4820-01-257-4941 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-257-4941. Manufacturer of record part number: L5351319-011.

Also searched as 4820-01-257-4941 · 4820012574941 · NIIN 012574941 · 01-257-4941 · FSC 4820 Valves, Nonpowered · CAGE 43999 · L5351319-011 · L5351319

Nearby stock numbers ← 4820-01-257-4939 · 4820-01-257-4942 Piston, Valve →

4820-01-257-4941 — Valves, Nonpowered

Features

Body,valve — FSC 4820
Outside Diameter: 2.560 INCHES NOMINAL IN
1 manufacturer part number on file
Manufacturer of record: The Boeing Company Div Legacy Am&m

Identification

NSN: 4820-01-257-4941
NIIN: 012574941
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: L5351319-011
Manufacturer: The Boeing Company Div Legacy Am&m

General Description

The Body,valve, cataloged under National Stock Number 4820-01-257-4941, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-257-4941
Primary Part Number	L5351319-011
Item Name	Body,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	The Boeing Company Div Legacy Am&m
Status	ACTIVE
Outside Diameter	2.560 INCHES NOMINAL IN

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

Cross-Reference Index

Part Number	Manufacturer
L5351319-011 PRIMARY	The Boeing Company Div Legacy Am&m (USA)

Reference documents

Reference	Meaning
L5351319	D/9 Drawing number reference only The Boeing Company Div Legacy Am&m

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 4820-01-257-4941?

NSN 4820-01-257-4941 is a Body,valve, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-257-4941?

NSN 4820-01-257-4941 has 1 manufacturer part number on file: L5351319-011 (The Boeing Company Div Legacy Am&m).

What are the specifications of L5351319-011?

Key specifications for L5351319-011: Outside Diameter: 2.560 INCHES NOMINAL IN; Special Features: ONE END 2.000 IN. OD, OTHER END 1.880 IN. OD, SILICONE RUBBER MOLDING ZZ-R-765 IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-257-4941 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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