Ram, Piston4320-00-401-4136

NSN 4320-00-401-4136 · NIIN 004014136

FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors

Government record, cited

Also searched as 4320-00-401-4136 · 4320004014136 · NIIN 004014136 · 00-401-4136 · FSC 4320 Power and Hand Pumps · D3501 · 52000121

Nearby stock numbers ← 4320-00-401-4038 · 4320-00-401-4186 Pump, Rotary →

Features

Ram,piston — FSC 4320
General Characteristics Item Description: 94.000 IN. O/A LG; 1ST STEP EA END 11.945 IN. MIN 11.950 IN. MAX DIA,2ND STEP EA END 11.885 IN. MIN 11.890 IN. MAX DIA,3RD STEP EA END 11.810 IN. DIA CENTER 10.160 IN. DIA; ONE END W/FIVE GROOVES OTHER END W/THREE GROOVES 0.271 IN. MIN 0.277 IN. MAX W BY 0.390 IN. MIN 0.395 IN. MAX DP; DOME SHAPED END 0.656 IN. MIN 8.661 IN. MAX DA IN

Identification

NSN: 4320-00-401-4136
NIIN: 004014136
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors

General Description

The Ram,piston, cataloged under National Stock Number 4320-00-401-4136, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-00-401-4136
Item Name	Ram,piston
FSC / FSG	4320 / 43 — Power and Hand Pumps
Status	ACTIVE
General Characteristics Item Description	94.000 IN. O/A LG; 1ST STEP EA END 11.945 IN. MIN 11.950 IN. MAX DIA,2ND STEP EA END 11.885 IN. MIN 11.890 IN. MAX DIA,3RD STEP EA END 11.810 IN. DIA CENTER 10.160 IN. DIA; ONE END W/FIVE GROOVES OTHER END W/THREE GROOVES 0.271 IN. MIN 0.277 IN. MAX W BY 0.390 IN. MIN 0.395 IN. MAX DP; DOME SHAPED END 0.656 IN. MIN 8.661 IN. MAX DA IN

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
D3501	3/9 Design control — primary reference Mkt Geotechnical Systems
52000121	5/9 Secondary reference Mkt Geotechnical Systems

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 4320-00-401-4136?

NSN 4320-00-401-4136 is a Ram,piston, classified under FSC 4320, Power and Hand Pumps. Status: active.

What are the specifications of 4320-00-401-4136?

Key specifications for 4320-00-401-4136: General Characteristics Item Description: 94.000 IN. O/A LG; 1ST STEP EA END 11.945 IN. MIN 11.950 IN. MAX DIA,2ND STEP EA END 11.885 IN. MIN 11.890 IN. MAX DIA,3RD STEP EA END 11.810 IN. DIA CENTER 10.160 IN. DIA; ONE END W/FIVE GROOVES OTHER END W/THREE GROOVES 0.271 IN. MIN 0.277 IN. MAX W BY 0.390 IN. MIN 0.395 IN. MAX DP; DOME SHAPED END 0.656 IN. MIN 8.661 IN. MAX DA IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-00-401-4136 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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