NSN 4820-01-340-4902 · NIIN 013404902 · Part number 7M7526-1
The Boeing Company Div Defense · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 76301
Government record, cited
NSN 4820-01-340-4902 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-340-4902. Manufacturer of record part number: 7M7526-1.
Also searched as4820-01-340-4902 ·
4820013404902 ·
NIIN 013404902 ·
01-340-4902 ·
FSC 4820 Valves, Nonpowered · CAGE 76301 · 7M7526-1
Bb End Shank Diameter: 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
Style Designator: PLAIN FLANGED
Material Document and Classification: QQ-A-225/6, T6, 851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8, T6 FED SPEC 2ND MATERIAL RESPONSE
Outside Diameter: 2.167 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN
Aa End Radius: 0.010 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
Material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061
Identification
NSN: 4820-01-340-4902
NIIN: 013404902
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 7M7526-1
Manufacturer: The Boeing Company Div Defense
General Description
The Guide,valve Stem, cataloged under National Stock Number 4820-01-340-4902, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 7 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-340-4902
Primary Part Number
7M7526-1
Item Name
Guide,valve Stem
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
The Boeing Company Div Defense
Status
ACTIVE
Major Diameter Length
0.400 INCHES NOMINAL IN
Bb End Shank Diameter
0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
Style Designator
PLAIN FLANGED
Material Document and Classification
QQ-A-225/6, T6, 851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8, T6 FED SPEC 2ND MATERIAL RESPONSE
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 4820-01-340-4902?
NSN 4820-01-340-4902 is a Guide,valve Stem, manufactured by The Boeing Company Div Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-340-4902?
NSN 4820-01-340-4902 has 1 manufacturer part number on file: 7M7526-1 (The Boeing Company Div Defense).
What are the specifications of 7M7526-1?
Key specifications for 7M7526-1: Major Diameter Length: 0.400 INCHES NOMINAL IN; Bb End Shank Diameter: 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED; Material Document and Classification: QQ-A-225/6, T6, 851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8, T6 FED SPEC 2ND MATERIAL RESPONSE. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-340-4902 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.