Washer, Flat5310-01-309-9783

NSN 5310-01-309-9783 · NIIN 013099783 · Part number 70219-42409-105

Alro Machine Tool and Die Co Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 1K556

Government record, cited

NSN 5310-01-309-9783 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-309-9783. Manufacturer of record part number: 70219-42409-105.

Also searched as 5310-01-309-9783 · 5310013099783 · NIIN 013099783 · 01-309-9783 · FSC 5310 Nuts and Washers · CAGE 1K556 · 70219-42409-105

Nearby stock numbers ← 5310-01-309-9756 Nut, Plain, Slotted, Hexagon · 5310-01-309-9784 Washer, Flat →

5310-01-309-9783 — Nuts and Washers

Features

Washer,flat — FSC 5310
2 manufacturer part numbers on file
Manufacturer of record: Alro Machine Tool and Die Co Inc

Identification

NSN: 5310-01-309-9783
NIIN: 013099783
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 70219-42409-105
Manufacturer: Alro Machine Tool and Die Co Inc

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-309-9783, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Alro Machine Tool and Die Co Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,flat
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Alro Machine Tool and Die Co Inc (CAGE 1K556); Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286)

Technical Specifications

Parameter	Value
NSN	5310-01-309-9783
Primary Part Number	70219-42409-105
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Alro Machine Tool and Die Co Inc
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
70219-42409-105 PRIMARY	Alro Machine Tool and Die Co Inc (USA)
70219-42409-105	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

No interchangeability data on file.

Other items in FSC 5310 — Nuts and Washers

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

5310-00-000-0040

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-309-9783?

NSN 5310-01-309-9783 is a Washer,flat, manufactured by Alro Machine Tool and Die Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-309-9783?

NSN 5310-01-309-9783 has 2 manufacturer part numbers on file: 70219-42409-105 (Alro Machine Tool and Die Co Inc), 70219-42409-105 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

Is NSN 5310-01-309-9783 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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