Nut, Plain, Hexagon5310-01-309-2618

NSN 5310-01-309-2618 · NIIN 013092618

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-01-309-2618 · 5310013092618 · NIIN 013092618 · 01-309-2618 · FSC 5310 Nuts and Washers · MILS1222TY2STYA GD4 5/16-24 · MILS1222TY2STYA GD4 5/16-18 · MIL-DTL-1222 · MIL-S-1222

Nearby stock numbers ← 5310-01-309-2574 Washer, Spring Tension · 5310-01-309-2619 →

5310-01-309-2618 — Nuts and Washers

Features

Nut,plain,hexagon — FSC 5310
Width Across Flats: 0.546 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Nut Height: 0.186 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
Bearing Surface Type: CHAMFERED OR WASHER FACED

Identification

NSN: 5310-01-309-2618
NIIN: 013092618
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-309-2618, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	5310-01-309-2618
Item Name	Nut,plain,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Width Across Flats	0.546 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Hardness Rating	24.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Nut Height	0.186 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
Bearing Surface Type	CHAMFERED OR WASHER FACED

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
MILS1222TY2STYA GD4 5/16-24	5/9 Secondary reference Zf Industrieantriebe Witten Gmbh
MILS1222TY2STYA GD4 5/16-18	5/9 Secondary reference Zf Industrieantriebe Witten Gmbh
MIL-DTL-1222	4/1 Identification reference U.S. Government activity
MIL-S-1222	5/9 Secondary reference U.S. Government activity

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 5310-01-309-2618?

NSN 5310-01-309-2618 is a Nut,plain,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-309-2618?

Key specifications for 5310-01-309-2618: Width Across Flats: 0.546 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Nut Height: 0.186 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: NUT,PLAIN,HEXAGON. 4 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-309-2618 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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