PartsTable TECHNICAL DATA SHEET

NSN 4820-01-017-5159Government record, cited

Valve Assembly4820-01-017-5159

NSN 4820-01-017-5159 · NIIN 010175159 · Part number BLD1781

Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 16236

Government record, cited

NSN 4820-01-017-5159 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-017-5159. Manufacturer of record part number: BLD1781.

Also searched as 4820-01-017-5159 · 4820010175159 · NIIN 010175159 · 01-017-5159 · FSC 4820 Valves, Nonpowered · CAGE 16236 · BLD1781

Nearby stock numbers ← 4820-01-017-5158 Valve Assembly · 4820-01-017-5216 Valve, Linear, Directional Control →

4820-01-017-5159 — Valves, Nonpowered

Features

Valve Assembly — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)

Identification

NSN: 4820-01-017-5159
NIIN: 010175159
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: BLD1781
Manufacturer: Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)

General Description

The Valve Assembly, cataloged under National Stock Number 4820-01-017-5159, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-017-5159
Primary Part Number	BLD1781
Item Name	Valve Assembly
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
Status	ACTIVE

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
BLD1781	Rolls-Royce Airlines (GBR)
BLD1781 PRIMARY	Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)

Reference documents

Reference	Meaning
BLD1781	5/9 Secondary reference Rolls-Royce Plc Div Defense (europe)

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 4820-01-017-5159?

NSN 4820-01-017-5159 is a Valve Assembly, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-017-5159?

NSN 4820-01-017-5159 has 2 manufacturer part numbers on file: BLD1781 (Rolls-Royce Airlines), BLD1781 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).

What are the specifications of BLD1781?

Key specifications for BLD1781: End Item Identification: AIRCRAFT ENGINE MODEL F402-RR-401. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-017-5159 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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