PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2497165-1Valve,safety Relief

Aerocontrolex Group, Inc. Div Talley Actuators · NSN 4820-01-273-9503 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-273-9503 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-273-9503. Primary manufacturer part number: 2497165-1.
Features
  • Valve,safety Relief — FSC 4820
  • Supplementary Features: APPL TO ACFT,TYPE F-16C/D
  • 2 verified cross-references
  • Primary manufacturer: Aerocontrolex Group, Inc. Div Talley Actuators
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-273-9503, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aerocontrolex Group, Inc. Div Talley Actuators. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-273-9503
Primary Part Number2497165-1
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAerocontrolex Group, Inc. Div Talley Actuators
StatusACTIVE
Supplementary FeaturesAPPL TO ACFT,TYPE F-16C/D
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5980-00-468-6038 INTERCHANGEABLE
Coupler,optoelectronic
Cross-Reference Index
Part NumberManufacturer
2497165-1 PRIMARY Aerocontrolex Group, Inc. Div Talley Actuators (USA)
20104000 United Dynamics, Inc (USA)
Related Parts
5980-00-468-6038INTERCHANGEABLE
COUPLER,OPTOELECTRONIC

Frequently Asked Questions

What is NSN 4820-01-273-9503?

NSN 4820-01-273-9503 is a Valve,safety Relief, manufactured by Aerocontrolex Group, Inc. Div Talley Actuators, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-273-9503?

NSN 4820-01-273-9503 has 2 cross-referenced part numbers: 2497165-1 (Aerocontrolex Group, Inc. Div Talley Actuators), 20104000 (United Dynamics, Inc).

What NSN replaces 4820-01-273-9503?

There is 1 known substitute for 4820-01-273-9503: 5980-00-468-6038. Verify interchangeability with system specifications before substitution.

What are the specifications of 2497165-1?

Key specifications for 2497165-1: Supplementary Features: APPL TO ACFT,TYPE F-16C/D. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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