NSN 4820-01-169-7446 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-169-7446. Manufacturer of record part number: A1757R-21.
Nonsupply Items and Quantities: VALVE SEAT 1;DISK 1
1 manufacturer part number on file
Manufacturer of record: Tate Andale, Llc
Identification
NSN: 4820-01-169-7446
NIIN: 011697446
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: A1757R-21
Manufacturer: Tate Andale, Llc
General Description
The Parts Kit,valve, cataloged under National Stock Number 4820-01-169-7446, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tate Andale, Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
C/1Advisory reference — outside the item-of-supply concept
Tate Andale, Llc
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 4820-01-169-7446?
NSN 4820-01-169-7446 is a Parts Kit,valve, manufactured by Tate Andale, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-169-7446?
NSN 4820-01-169-7446 has 1 manufacturer part number on file: A1757R-21 (Tate Andale, Llc).
What are the specifications of A1757R-21?
Key specifications for A1757R-21: Component Quantity: 2; Nonsupply Items and Quantities: VALVE SEAT 1;DISK 1. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-169-7446 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.