PartsTable TECHNICAL DATA SHEET

NSN 4320-01-049-9442Government record, cited

Cover, Hydraulic, Pump-Motor4320-01-049-9442

NSN 4320-01-049-9442 · NIIN 010499442 · Part number S-1431DJ

Circor Pumps North America Llc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 59180

Government record, cited

NSN 4320-01-049-9442 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-049-9442. Manufacturer of record part number: S-1431DJ.

Also searched as 4320-01-049-9442 · 4320010499442 · NIIN 010499442 · 01-049-9442 · FSC 4320 Power and Hand Pumps · CAGE 59180 · S-1431DJ · SF-10524 · SF-10524 ITEM 90 · SF-10524

Nearby stock numbers ← 4320-01-049-9438 Head, Pump · 4320-01-049-9474 Seal Assembly, Shaft, Spring Loade →

Features

Cover,hydraulic,pump-Motor — FSC 4320
Material: STEEL
2 manufacturer part numbers on file
Manufacturer of record: Circor Pumps North America Llc

Identification

NSN: 4320-01-049-9442
NIIN: 010499442
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: S-1431DJ
Manufacturer: Circor Pumps North America Llc

General Description

The Cover,hydraulic,pump-Motor, cataloged under National Stock Number 4320-01-049-9442, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-049-9442
Primary Part Number	S-1431DJ
Item Name	Cover,hydraulic,pump-Motor
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Circor Pumps North America Llc
Status	ACTIVE
Material	STEEL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 6

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4320-01-050-3263S-1431DK POSSIBLE MATCH

MANIFOLD,COVER

Possible match (shared part number)Circor Pumps North America Llc

4320-01-050-3264S-1427DK POSSIBLE MATCH

MANIFOLD SUB ASSEMB

Possible match (shared part number)Circor Pumps North America Llc

4710-01-050-3343S1427DL POSSIBLE MATCH

TUBE,BENT,METALLIC

Possible match (shared part number)Circor Pumps North America Llc

4710-01-050-3344S1427DD POSSIBLE MATCH

TUBE,BENT,METALLIC

Possible match (shared part number)Circor Pumps North America Llc

4320-01-050-3501S1401DA POSSIBLE MATCH

SHAFT,TRANSMISSION,PUMP

Possible match (shared part number)Circor Pumps North America Llc

4730-01-063-3859S1422DB POSSIBLE MATCH

STRAINER ELEMENT,SEDIMENT

Possible match (shared part number)Circor Pumps North America Llc

Cross-Reference Index

Part Number	Manufacturer
S-1431DJ PRIMARY	Circor Pumps North America Llc (USA)
SF-10524 ITEM 90	Circor Pumps North America Llc (USA)

Reference documents

Reference	Meaning
S-1431DJ	5/9 Secondary reference Siemens Energy, Inc.
SF-10524	D/9 Drawing number reference only Circor Pumps North America Llc
SF-10524 ITEM 90	5/9 Secondary reference Siemens Energy, Inc.
SF-10524	5/9 Secondary reference Siemens Energy, Inc.

Related Parts

4320-01-050-3263POSSIBLE MATCH

MANIFOLD,COVER

S-1431DK

4320-01-050-3264POSSIBLE MATCH

MANIFOLD SUB ASSEMB

S-1427DK

4710-01-050-3343POSSIBLE MATCH

TUBE,BENT,METALLIC

S1427DL

4710-01-050-3344POSSIBLE MATCH

TUBE,BENT,METALLIC

S1427DD

4320-01-050-3501POSSIBLE MATCH

SHAFT,TRANSMISSION,PUMP

S1401DA

4730-01-063-3859POSSIBLE MATCH

STRAINER ELEMENT,SEDIMENT

S1422DB

Frequently Asked Questions

What is NSN 4320-01-049-9442?

NSN 4320-01-049-9442 is a Cover,hydraulic,pump-Motor, manufactured by Circor Pumps North America Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-049-9442?

NSN 4320-01-049-9442 has 2 manufacturer part numbers on file: S-1431DJ (Circor Pumps North America Llc), SF-10524 ITEM 90 (Circor Pumps North America Llc).

What NSN replaces 4320-01-049-9442?

6 possible matches (shared part number, not a government interchangeability claim): 4320-01-050-3263, 4320-01-050-3264, 4710-01-050-3343. Verify interchangeability with system specifications before substitution.

What are the specifications of S-1431DJ?

Key specifications for S-1431DJ: Special Features: MIL-S-16216 CLASS HY-100; End Item Identification: IMO DELAVAL TYPE AB31K-200; Material: STEEL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-01-049-9442 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.

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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