Body Style: ANGLE SHAPE FLANGE MOUNT, EXTERNAL COUPLING
Mating End Quantity: 1
Unthreaded Mounting Hole Diameter: 0.115 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Height: 1.116 INCHES MINIMUM AND 1.158 INCHES MAXIMUM IN
Flange Length: 1.116 INCHES MINIMUM AND 1.158 INCHES MAXIMUM IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 0.833 INCHES MINIMUM AND 0.853 INCHES MAXIMUM IN
Distance From Mounting Shoulder to Front Face: 0.878 INCHES MINIMUM AND 0.898 INCHES MAXIMUM IN
Identification
NSN: 6060-01-423-0557
NIIN: 014230557
FSC: 6060 — Fiber Optic Interconnectors
FSG: 60 — Fiber Optics Materials, Components, Assemblies, and Accessories
General Description
The Connector,receptacle,fiber Optic, cataloged under National Stock Number 6060-01-423-0557, is classified within Federal Supply Class 6060 (Fiber Optic Interconnectors) of the Fiber Optics Materials, Components, Assemblies, and Accessories group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
6060-01-423-0557
Item Name
Connector,receptacle,fiber Optic
FSC / FSG
6060 / 60 — Fiber Optic Interconnectors
Status
ACTIVE
Body Style
ANGLE SHAPE FLANGE MOUNT, EXTERNAL COUPLING
Mating End Quantity
1
Unthreaded Mounting Hole Diameter
0.115 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Height
1.116 INCHES MINIMUM AND 1.158 INCHES MAXIMUM IN
Flange Length
1.116 INCHES MINIMUM AND 1.158 INCHES MAXIMUM IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Width
0.833 INCHES MINIMUM AND 0.853 INCHES MAXIMUM IN
Distance From Mounting Shoulder to Front Face
0.878 INCHES MINIMUM AND 0.898 INCHES MAXIMUM IN
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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6060-01-423-0561POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Possible match (shared part number)
6060-01-433-2781POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Possible match (shared part number)
6060-01-433-2784POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Possible match (shared part number)
6060-01-433-2785POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Possible match (shared part number)
6060-01-433-2787POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Possible match (shared part number)
6060-01-433-2788POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Possible match (shared part number)
6060-01-627-1566POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
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-C-28876/4
5/9Secondary reference
U.S. Government activity
MIL-PRF-28876/4
4/1Identification reference
U.S. Government activity
M28876/4B12S1
2/2Government specification standardization
U.S. Government activity
Related Parts
6060-01-423-0561POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
6060-01-433-2781POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
6060-01-433-2784POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
6060-01-433-2785POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
6060-01-433-2787POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
6060-01-433-2788POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
6060-01-627-1566POSSIBLE MATCH
CONNECTOR,RECEPTACLE,FIBER OPTIC
Frequently Asked Questions
What is NSN 6060-01-423-0557?
NSN 6060-01-423-0557 is a Connector,receptacle,fiber Optic, classified under FSC 6060, Fiber Optic Interconnectors. Status: active.
What NSN replaces 6060-01-423-0557?
7 possible matches (shared part number, not a government interchangeability claim): 6060-01-423-0561, 6060-01-433-2781, 6060-01-433-2784. Verify interchangeability with system specifications before substitution.
What are the specifications of 6060-01-423-0557?
Key specifications for 6060-01-423-0557: Body Style: ANGLE SHAPE FLANGE MOUNT, EXTERNAL COUPLING; Mating End Quantity: 1; Unthreaded Mounting Hole Diameter: 0.115 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Overall Width: 1.116 INCHES MINIMUM AND 1.158 INCHES MAXIMUM IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 6060-01-423-0557 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.