PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1001-27Valve,check

Aqualung Usa, Inc · NSN 4820-01-480-2226 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-480-2226 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-480-2226. Primary manufacturer part number: 1001-27.
Features
  • Valve,check — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Aqualung Usa, Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-480-2226, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aqualung Usa, Inc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-480-2226
Primary Part Number1001-27
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAqualung Usa, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5331-00-126-5265100-127 INTERCHANGEABLE
O-Ring
Sheffer Corp
3110-00-227-2510GB810 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
6625-00-673-451612INWITHLC5302AND163-0512-3 INTERCHANGEABLE
Lead Assy,tester
Mission Systems Davenport Inc.
5950-01-106-6841100127 INTERCHANGEABLE
Inductor
L3 Technologies, Inc. Div Communication Systems-East
3110-01-172-70299121001-02 INTERCHANGEABLE
Bearing,ball,annular
Mile High Equipment Company Dba Ice-O-Matic
5331-01-249-7225 INTERCHANGEABLE
O-Ring
3120-01-381-2217 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
HADB 1001-27 Air Liquide Advanced Technologies (FRA)
1001-27 PRIMARY Aqualung Usa, Inc (USA)
W002148 Air Liquide Advanced Technologies (FRA)
Related Parts
5331-00-126-5265INTERCHANGEABLE
O-RING
100-127
3110-00-227-2510INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
GB810
6625-00-673-4516INTERCHANGEABLE
LEAD ASSY,TESTER
12INWITHLC5302AND163-0512-3
5950-01-106-6841INTERCHANGEABLE
INDUCTOR
100127
3110-01-172-7029INTERCHANGEABLE
BEARING,BALL,ANNULAR
9121001-02
5331-01-249-7225INTERCHANGEABLE
O-RING
3120-01-381-2217INTERCHANGEABLE
BEARING,SLEEVE

Frequently Asked Questions

What is NSN 4820-01-480-2226?

NSN 4820-01-480-2226 is a Valve,check, manufactured by Aqualung Usa, Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-480-2226?

NSN 4820-01-480-2226 has 3 cross-referenced part numbers: HADB 1001-27 (Air Liquide Advanced Technologies), 1001-27 (Aqualung Usa, Inc), W002148 (Air Liquide Advanced Technologies).

What NSN replaces 4820-01-480-2226?

There are 7 known substitutes for 4820-01-480-2226: 5331-00-126-5265, 3110-00-227-2510, 6625-00-673-4516 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1001-27?

Key specifications for 1001-27: End Item Identification: USED ON MICRA SECOND STAGE INDEPENDENT BACK UP BREATHING SYSTEM. 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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