Cover, Fiber Optic Connector6060-01-599-0657

NSN 6060-01-599-0657 · NIIN 015990657

FSC 6060 — Fiber Optic Interconnectors · FSG 60 — Fiber Optics Materials, Components, Assemblies, and Accessories

Government record, cited

Also searched as 6060-01-599-0657 · 6060015990657 · NIIN 015990657 · 01-599-0657 · FSC 6060 Fiber Optic Interconnectors · MIL-PRF-28876/15 · M28876/15BA

Nearby stock numbers ← 6060-01-598-6273 Connector, Plug, Fiber Optic · 6060-01-599-3996 Adapter, Fiber Optic →

Features

Cover,fiber Optic Connector — FSC 6060
Overall Diameter: 1.141 INCHES MAXIMUM IN
Body Height: 0.780 INCHES MAXIMUM IN
Style Designator: INTERNAL THREAD W/CHAIN OR ROPE

Identification

NSN: 6060-01-599-0657
NIIN: 015990657
FSC: 6060 — Fiber Optic Interconnectors
FSG: 60 — Fiber Optics Materials, Components, Assemblies, and Accessories

General Description

The Cover,fiber Optic Connector, cataloged under National Stock Number 6060-01-599-0657, is classified within Federal Supply Class 6060 (Fiber Optic Interconnectors) of the Fiber Optics Materials, Components, Assemblies, and Accessories group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	6060-01-599-0657
Item Name	Cover,fiber Optic Connector
FSC / FSG	6060 / 60 — Fiber Optic Interconnectors
Status	ACTIVE
Overall Diameter	1.141 INCHES MAXIMUM IN
Body Height	0.780 INCHES MAXIMUM IN
Style Designator	INTERNAL THREAD W/CHAIN OR ROPE

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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

6060-01-656-9917 POSSIBLE MATCH

COVER,FIBER OPTIC CONNECTOR

Possible match (shared part number)

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
MIL-PRF-28876/15	4/1 Identification reference U.S. Government activity
M28876/15BA	2/2 Government specification standardization U.S. Government activity

Related Parts

6060-01-656-9917POSSIBLE MATCH

COVER,FIBER OPTIC CONNECTOR

Frequently Asked Questions

What is NSN 6060-01-599-0657?

NSN 6060-01-599-0657 is a Cover,fiber Optic Connector, classified under FSC 6060, Fiber Optic Interconnectors. Status: active.

What NSN replaces 6060-01-599-0657?

1 possible match (shared part number, not a government interchangeability claim): 6060-01-656-9917. Verify interchangeability with system specifications before substitution.

What are the specifications of 6060-01-599-0657?

Key specifications for 6060-01-599-0657: Overall Diameter: 1.141 INCHES MAXIMUM IN; Body Height: 0.780 INCHES MAXIMUM IN; Style Designator: INTERNAL THREAD W/CHAIN OR ROPE; Special Features: LANYARD SHALL BE FREE TO ROTATE ON FASTENER, GASKET SHALL BE MECHANICALLY CAPTIVE TO THE COVER. 3 specifications are documented in the U.S. Government catalog.

Is NSN 6060-01-599-0657 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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