NSN 4820-01-055-9101 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-055-9101. Manufacturer of record part number: 26765-2.
Also searched as4820-01-055-9101 ·
4820010559101 ·
NIIN 010559101 ·
01-055-9101 ·
FSC 4820 Valves, Nonpowered · CAGE 55820 · 26765-2
Seat Radius: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
Material: STEEL COMP 440C OVERALL
Seat Angle in Deg: 48.000 MINIMUM AND 50.000 MAXIMUM
Seating Surface Shape: ANGULAR
1 manufacturer part number on file
Manufacturer of record: Rtx Corporation Div Pratt & Whitney
Identification
NSN: 4820-01-055-9101
NIIN: 010559101
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 26765-2
Manufacturer: Rtx Corporation Div Pratt & Whitney
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-055-9101, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 4 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.
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 4820-01-055-9101?
NSN 4820-01-055-9101 is a Seat,valve, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-055-9101?
NSN 4820-01-055-9101 has 1 manufacturer part number on file: 26765-2 (Rtx Corporation Div Pratt & Whitney).
What are the specifications of 26765-2?
Key specifications for 26765-2: Seat Radius: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Material: STEEL COMP 440C OVERALL; Seat Angle in Deg: 48.000 MINIMUM AND 50.000 MAXIMUM; Seating Surface Shape: ANGULAR. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-055-9101 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.