Seal Assembly, Shaft, Spring Loade4320-01-331-3099

NSN 4320-01-331-3099 · NIIN 013313099 · Part number 81599-1

Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 09790

Government record, cited

NSN 4320-01-331-3099 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-331-3099. Manufacturer of record part number: 81599-1.

Also searched as 4320-01-331-3099 · 4320013313099 · NIIN 013313099 · 01-331-3099 · FSC 4320 Power and Hand Pumps · CAGE 09790 · 81599-1 · 81599 · 83412 ITEM 15

Nearby stock numbers ← 4320-01-331-2986 Ejector, Jet · 4320-01-331-3551 Sleeve, Shaft, Pump →

Features

Seal Assembly,shaft,spring Loade — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

Identification

NSN: 4320-01-331-3099
NIIN: 013313099
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 81599-1
Manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-331-3099, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Seal Assembly,shaft,spring Loade
FSC / FSG	4320 — Power and Hand Pumps (FSG 43)
Manufacturers	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (CAGE 09790)

Technical Specifications

Parameter	Value
NSN	4320-01-331-3099
Primary Part Number	81599-1
Item Name	Seal Assembly,shaft,spring Loade
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
81599-1 PRIMARY	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)

Reference documents

Reference	Meaning
81599	5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
83412 ITEM 15	5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

Frequently Asked Questions

What is NSN 4320-01-331-3099?

NSN 4320-01-331-3099 is a Seal Assembly,shaft,spring Loade, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-331-3099?

NSN 4320-01-331-3099 has 1 manufacturer part number on file: 81599-1 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).

Is NSN 4320-01-331-3099 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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