Piston, Pump4320-01-320-0103

NSN 4320-01-320-0103 · NIIN 013200103 · Part number 1312

Oasis Construction Div Supply Nurses · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 17529

Government record, cited

NSN 4320-01-320-0103 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-320-0103. Manufacturer of record part number: 1312.

Also searched as 4320-01-320-0103 · 4320013200103 · NIIN 013200103 · 01-320-0103 · FSC 4320 Power and Hand Pumps · CAGE 17529 · 1312

Nearby stock numbers ← 4320-01-320-0007 Pump, Centrifugal · 4320-01-320-0104 Piston, Pump →

Features

Piston,pump — FSC 4320
Integral Connecting Rod: NOT INCLUDED
Retaining Ring Groove: NOT INCLUDED
Pin: NOT INCLUDED
Head Style: FLAT
Ring Groove Quantity: 1
Skirt Bottom Cutaway Feature: NOT INCLUDED
Ring: NOT INCLUDED

Identification

NSN: 4320-01-320-0103
NIIN: 013200103
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 1312
Manufacturer: Oasis Construction Div Supply Nurses

General Description

The Piston,pump, cataloged under National Stock Number 4320-01-320-0103, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Oasis Construction Div Supply Nurses. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 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	4320-01-320-0103
Primary Part Number	1312
Item Name	Piston,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Oasis Construction Div Supply Nurses
Status	ACTIVE
Integral Connecting Rod	NOT INCLUDED
Retaining Ring Groove	NOT INCLUDED
Pin	NOT INCLUDED
Head Style	FLAT
Ring Groove Quantity	1
Skirt Bottom Cutaway Feature	NOT INCLUDED
Ring	NOT INCLUDED
Skirt Type	SOLID

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

Cross-Reference Index

Part Number	Manufacturer
1312 PRIMARY	Oasis Construction Div Supply Nurses (USA)

No interchangeability data on file.

Other items in FSC 4320 — Power and Hand Pumps

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4320-00-001-1633

4320-00-001-1633 · Item name not on file

4320-00-001-2628

RETAINER AND PIN

4320-00-001-2629

HOUSING AND PIN

4320-00-001-2630

PUMP,CENTRIFUGAL

4320-00-001-2631

4320-00-001-2631 · Item name not on file

4320-00-001-2632

4320-00-001-2632 · Item name not on file

4320-00-001-3377

4320-00-001-3377 · Item name not on file

4320-00-001-3384

4320-00-001-3384 · Item name not on file

Frequently Asked Questions

What is NSN 4320-01-320-0103?

NSN 4320-01-320-0103 is a Piston,pump, manufactured by Oasis Construction Div Supply Nurses, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-320-0103?

NSN 4320-01-320-0103 has 1 manufacturer part number on file: 1312 (Oasis Construction Div Supply Nurses).

What are the specifications of 1312?

Key specifications for 1312: Integral Connecting Rod: NOT INCLUDED; Retaining Ring Groove: NOT INCLUDED; Pin: NOT INCLUDED; Head Style: FLAT. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-320-0103 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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