Washer, Lock5310-01-691-8520

NSN 5310-01-691-8520 · NIIN 016918520 · Part number NL36

Superbolt Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0S9Z9

Government record, cited

NSN 5310-01-691-8520 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-691-8520. Manufacturer of record part number: NL36.

Also searched as 5310-01-691-8520 · 5310016918520 · NIIN 016918520 · 01-691-8520 · FSC 5310 Nuts and Washers · CAGE 0S9Z9 · NL36

Nearby stock numbers ← 5310-01-691-8513 Washer, Spring Tension · 5310-01-691-8667 Nut, Plain, Slotted, Hexagon →

5310-01-691-8520 — Nuts and Washers

Features

Washer,lock — FSC 5310
Style Designator: TWO PIECE INTERLOCKING
Outside Diameter: 55.0 MILLIMETERS NOMINAL MM
Hole Diameter: 37.4 MILLIMETERS NOMINAL MM
1 manufacturer part number on file
Manufacturer of record: Superbolt Inc

Identification

NSN: 5310-01-691-8520
NIIN: 016918520
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: NL36
Manufacturer: Superbolt Inc

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-691-8520, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Superbolt Inc. Government technical data includes 3 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	5310-01-691-8520
Primary Part Number	NL36
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Superbolt Inc
Status	ACTIVE
Style Designator	TWO PIECE INTERLOCKING
Outside Diameter	55.0 MILLIMETERS NOMINAL MM
Hole Diameter	37.4 MILLIMETERS NOMINAL MM

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
NL36 PRIMARY	Superbolt Inc (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 5310-01-691-8520?

NSN 5310-01-691-8520 is a Washer,lock, manufactured by Superbolt Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-691-8520?

NSN 5310-01-691-8520 has 1 manufacturer part number on file: NL36 (Superbolt Inc).

What are the specifications of NL36?

Key specifications for NL36: Overall Height: 5.8 MILLIMETERS NOMINAL MM; Style Designator: TWO PIECE INTERLOCKING; Outside Diameter: 55.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: WASHER. 3 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-691-8520 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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