PartsTable TECHNICAL DATA SHEET

NSN 4820-01-656-4725Government record, cited

Divider, Valve Flow4820-01-656-4725

NSN 4820-01-656-4725 · NIIN 016564725 · Part number 4503637A

Rtx Corporation Div Pratt & Whitney · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55820

Government record, cited

NSN 4820-01-656-4725 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-656-4725. Manufacturer of record part number: 4503637A.

Also searched as 4820-01-656-4725 · 4820016564725 · NIIN 016564725 · 01-656-4725 · FSC 4820 Valves, Nonpowered · CAGE 55820 · 4503637A

Nearby stock numbers ← 4820-01-656-4573 Seat, Valve · 4820-01-656-4727 Valve, Check →

4820-01-656-4725 — Valves, Nonpowered

Features

Divider,valve Flow — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Rtx Corporation Div Pratt & Whitney

Identification

NSN: 4820-01-656-4725
NIIN: 016564725
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4503637A
Manufacturer: Rtx Corporation Div Pratt & Whitney

General Description

The Divider,valve Flow, cataloged under National Stock Number 4820-01-656-4725, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-656-4725
Primary Part Number	4503637A
Item Name	Divider,valve Flow
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Rtx Corporation Div Pratt & Whitney
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
4503637A PRIMARY	Rtx Corporation Div Pratt & Whitney (USA)

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 4820-01-656-4725?

NSN 4820-01-656-4725 is a Divider,valve Flow, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-656-4725?

NSN 4820-01-656-4725 has 1 manufacturer part number on file: 4503637A (Rtx Corporation Div Pratt & Whitney).

What are the specifications of 4503637A?

Key specifications for 4503637A: Part Name Assigned by Controlling Agency: FLOW DIVIDER ASSEMBLY;; End Item Identification: COMBUSTOR ASSEMBLY, AUXILIARY POWER SYSTEM;. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-656-4725 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.

What is the DEMIL code for NSN 4820-01-656-4725?

NSN 4820-01-656-4725 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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.

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