Tool, Seal Lead-in1020-01-481-7536

NSN 1020-01-481-7536 · NIIN 014817536 · Part number 5520771

Naval Sea Systems Command · FSC 1020 — Guns, Over 125mm Through 150mm · FSG 10 — Weapons · CAGE 53711

Government record, cited

NSN 1020-01-481-7536 — this item is cataloged by the U.S. Government under National Stock Number 1020-01-481-7536. Manufacturer of record part number: 5520771.

Also searched as 1020-01-481-7536 · 1020014817536 · NIIN 014817536 · 01-481-7536 · FSC 1020 Guns, Over 125mm Through 150mm · CAGE 53711 · 5520771

Nearby stock numbers ← 1020-01-479-5874 Ratchet, Slide · 1020-01-484-0202 Breech Mechanism →

Features

Tool,seal Lead-in — FSC 1020
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 1020-01-481-7536
NIIN: 014817536
FSC: 1020 — Guns, Over 125mm Through 150mm
FSG: 10 — Weapons
Primary part number: 5520771
Manufacturer: Naval Sea Systems Command

General Description

The Tool,seal Lead-in, cataloged under National Stock Number 1020-01-481-7536, is classified within Federal Supply Class 1020 (Guns, Over 125mm Through 150mm) of the Weapons group. The manufacturer of record is Naval Sea Systems Command. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Tool,seal Lead-in
FSC / FSG	1020 — Guns, Over 125mm Through 150mm (FSG 10)
Manufacturers	Naval Sea Systems Command (CAGE 53711)

Technical Specifications

Parameter	Value
NSN	1020-01-481-7536
Primary Part Number	5520771
Item Name	Tool,seal Lead-in
FSC / FSG	1020 / 10 — Guns, Over 125mm Through 150mm
Manufacturer	Naval Sea Systems Command
Status	ACTIVE

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
5520771 PRIMARY	Naval Sea Systems Command (USA)

No interchangeability data on file.

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

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Frequently Asked Questions

What is NSN 1020-01-481-7536?

NSN 1020-01-481-7536 is a Tool,seal Lead-in, manufactured by Naval Sea Systems Command, classified under FSC 1020, Guns, Over 125mm Through 150mm. Status: active.

What part numbers are listed for NSN 1020-01-481-7536?

NSN 1020-01-481-7536 has 1 manufacturer part number on file: 5520771 (Naval Sea Systems Command).

Is NSN 1020-01-481-7536 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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