PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

21270-801-1Regulating Element,flow,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-503-6862 · FSC 4820 · No Item Name Available

Verified by PartsTable

NSN 4820-01-503-6862 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-503-6862. Primary manufacturer part number: 21270-801-1.

4820-01-503-6862 — No Item Name Available illustration

Features

Regulating Element,flow,valve — FSC 4820
Material: STEEL
3 verified cross-references
Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation
Applications requiring Steel construction

General Description

The Regulating Element,flow,valve, cataloged under National Stock Number 4820-01-503-6862, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-503-6862
Primary Part Number	21270-801-1
Item Name	Regulating Element,flow,valve
FSC / FSG	4820 / 48 — No Item Name Available
Manufacturer	Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Status	ACTIVE
Material	STEEL

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 11

5965-00-280-3111SC-C-105391 INTERCHANGEABLE

Cushion,ear

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir

6685-00-731-595810440MR INTERCHANGEABLE

Thermometer,self-Indicating

Winters Instruments

5935-01-058-64885082-2240-00 INTERCHANGEABLE

Adapter,connector

Tyco Electronics Corp

4235-01-391-204721270 INTERCHANGEABLE

Sorbent,hazardous Material

A.r.k. Enterprises, Inc., the

1005-01-465-040112951011 INTERCHANGEABLE

Handle,gun Carrying

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate

4820-01-503-249721270-001 INTERCHANGEABLE

Valve Assembly,manifold

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace

4820-01-503-261009-21243-1-1 INTERCHANGEABLE

Valve,check

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace

4820-01-503-261821270-1003-1 INTERCHANGEABLE

Seat,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace

4820-01-503-262121270-1004-1 INTERCHANGEABLE

Retainer,quiet Element

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace

4820-01-503-262321270-1000-1 INTERCHANGEABLE

Disk,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace

Cross-Reference Index

Part Number	Manufacturer
21270	Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21270-801-1 PRIMARY	Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21270-12	Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)

Related Parts

5965-00-280-3111INTERCHANGEABLE

SC-C-105391

6685-00-731-5958INTERCHANGEABLE

THERMOMETER,SELF-INDICATING

10440MR

5935-01-058-6488INTERCHANGEABLE

ADAPTER,CONNECTOR

5082-2240-00

4235-01-391-2047INTERCHANGEABLE

SORBENT,HAZARDOUS MATERIAL

21270

1005-01-465-0401INTERCHANGEABLE

HANDLE,GUN CARRYING

12951011

4820-01-503-2497INTERCHANGEABLE

VALVE ASSEMBLY,MANIFOLD

21270-001

4820-01-503-2610INTERCHANGEABLE

09-21243-1-1

4820-01-503-2618INTERCHANGEABLE

21270-1003-1

4820-01-503-2621INTERCHANGEABLE

RETAINER,QUIET ELEMENT

21270-1004-1

4820-01-503-2623INTERCHANGEABLE

21270-1000-1

5950-01-529-6526INTERCHANGEABLE

TRANSFORMER,POWER

21270

Frequently Asked Questions

What is NSN 4820-01-503-6862?

NSN 4820-01-503-6862 is a Regulating Element,flow,valve, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-503-6862?

NSN 4820-01-503-6862 has 3 cross-referenced part numbers: 21270 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21270-801-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21270-12 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-503-6862?

There are 11 known substitutes for 4820-01-503-6862: 5965-00-280-3111, 6685-00-731-5958, 5935-01-058-6488 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21270-801-1?

Key specifications for 21270-801-1: Material: STEEL; Special Features: STEEL IS IAW MIL-S-18729 4130 COND. N; End Item Identification: NHA 4820-01-503-2497 RESTRICTOR VALVE ASSY; W/S SEAWOLF CLASS SSN; Part Name Assigned by Controlling Agency: QUIET ELEMENT. 4 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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