PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

303-31Swing,valve

Dukes Aerospace, Inc. · NSN 4810-00-056-1377 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-056-1377 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-056-1377. Primary manufacturer part number: 303-31.
Features
  • Swing,valve — FSC 4810
  • General Characteristics Item Description: 1.750 IN. DIA; INCLUDES THE FOLLOWING PART NUMBERED ITEMS: 103-15 1 EA,103-14 2 EA,103-13 1 EA,303-30 1 EA,203-21 1 EA; USED ON P/N 403-00-5,NSN 4810-00-050-0896 IN
  • FSC Application Data: VALVE,CABIN,RAM AIR
  • 1 verified cross-reference
  • Primary manufacturer: Dukes Aerospace, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Swing,valve, cataloged under National Stock Number 4810-00-056-1377, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dukes Aerospace, Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-00-056-1377
Primary Part Number303-31
Item NameSwing,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerDukes Aerospace, Inc.
StatusACTIVE
General Characteristics Item Description1.750 IN. DIA; INCLUDES THE FOLLOWING PART NUMBERED ITEMS: 103-15 1 EA,103-14 2 EA,103-13 1 EA,303-30 1 EA,203-21 1 EA; USED ON P/N 403-00-5,NSN 4810-00-050-0896 IN
FSC Application DataVALVE,CABIN,RAM AIR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3455-00-224-365709300 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5310-00-441-313030331 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
2520-00-986-3592 INTERCHANGEABLE
Differential
3010-01-167-073630331 INTERCHANGEABLE
Sleeve,cylinder,act
Moog Inc. Dba Ampac-Isp Corp
3230-01-235-747830331 INTERCHANGEABLE
Bit,router
Black and Decker Us Inc
5950-01-256-8874 INTERCHANGEABLE
Transformer,power
5330-01-313-850030331 INTERCHANGEABLE
Gasket
W.w. Grainger, Inc. Div Government Sales Division
7690-01-469-2566 INTERCHANGEABLE
Label
Cross-Reference Index
Part NumberManufacturer
303-31 PRIMARY Dukes Aerospace, Inc. (USA)
Related Parts
3455-00-224-3657INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
09300
5310-00-441-3130INTERCHANGEABLE
WASHER,FLAT
30331
2520-00-986-3592INTERCHANGEABLE
DIFFERENTIAL
3010-01-167-0736INTERCHANGEABLE
SLEEVE,CYLINDER,ACT
30331
3230-01-235-7478INTERCHANGEABLE
BIT,ROUTER
30331
5950-01-256-8874INTERCHANGEABLE
TRANSFORMER,POWER
5330-01-313-8500INTERCHANGEABLE
GASKET
30331
7690-01-469-2566INTERCHANGEABLE
LABEL

Frequently Asked Questions

What is NSN 4810-00-056-1377?

NSN 4810-00-056-1377 is a Swing,valve, manufactured by Dukes Aerospace, Inc., classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-00-056-1377?

NSN 4810-00-056-1377 has 1 cross-referenced part number: 303-31 (Dukes Aerospace, Inc.).

What NSN replaces 4810-00-056-1377?

There are 8 known substitutes for 4810-00-056-1377: 3455-00-224-3657, 5310-00-441-3130, 2520-00-986-3592 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 303-31?

Key specifications for 303-31: End Item Identification: ACFT TYPE T-38 AND F-5; General Characteristics Item Description: 1.750 IN. DIA; INCLUDES THE FOLLOWING PART NUMBERED ITEMS: 103-15 1 EA,103-14 2 EA,103-13 1 EA,303-30 1 EA,203-21 1 EA; USED ON P/N 403-00-5,NSN 4810-00-050-0896 IN; FSC Application Data: VALVE,CABIN,RAM AIR. 3 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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