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MILB5687TYPE1C0MP0SITI0NA — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MILB5687TYPE1C0MP0SITI0NA: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: COPPER ALLOY 841 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN, hardness_rating: 30.0 ROCKWELL H MINIMUM AND 70.0 ROCKWELL H MAXIMUM OVERALL, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-080-3548, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MILB5687TYPE1C0MP0SITI0NA
NSN: 3120-00-080-3548
NIINs: 000803548, 000888076, 002876470, 002879008, 002879010, 004252232, 004334623, 004334633, 004334708, 004893927, 004894052, 004894055, 004894066, 004894179, 004894218, 004894244, 004894248, 004974781, 004974820, 005160440, 005162033, 005162057, 005162059, 005178587, 005178715, 005191501, 005226513, 005285570, 005285637, 005299178, 005345776, 005345777, 005345810, 005408094, 005408159, 005408584, 005542608, 005554050, 005554153, 005800793, 005851059, 005854143, 005854818, 005859726, 005859727, 006104383, 006186399, 006258226, 006614207, 006614296, 006614982, 006614984, 006615297, 006615546, 006616726, 006616981, 006617012, 006617023, 006617317, 006617322, 006617323, 006617327, 006617333, 006617392, 006617404, 006617869, 006618278, 006619036, 006621692, 006622538, 006628178, 006628180, 006628186, 006628191, 006628256, 006628321, 006628322, 006629066, 006629332, 006629338, 006794555, 006841071, 006842617, 007286055, 007526484, 007952312, 007967203, 007967485, 008002117, 008105225, 008131408, 008430678, 008469974, 008918887, 009459566, 009590230, 009591567, 009591568, 009887726, 009887730, 012179146
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 841 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.6200 INCHES MINIMUM AND 0.6300 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL H MINIMUM AND 70.0 ROCKWELL H MAXIMUM OVERALL
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
body_outside_diameter0.3770 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN
material_document_and_classificationMIL-B-5687,TYPE 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-080-3548
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MILB5687TYPE1C0MP0SITI0NA · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
FLANGE OUTSIDE DIAMETER: 0.9662 INCHES MINIMUM AND 0.9712 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.6900 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
BODY INSIDE DIAMETER: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A COMPOSITION
•
FLANGE WIDTH: 0.0937 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
FLANGE OUTSIDE DIAMETER0.9662 INCHES MINIMUM AND 0.9712 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6900 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH1.0000 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A COMPOSITION
FLANGE WIDTH0.0937 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
X2717Reference document
Same NSN cross-reference
Reference document — Secondary reference
157E5-2053Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
F612-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MILB5687TYPE1C0MP0SITI0NA?
MILB5687TYPE1C0MP0SITI0NA is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace MILB5687TYPE1C0MP0SITI0NA?
There are 3 known substitutes for MILB5687TYPE1C0MP0SITI0NA: X2717, 157E5-2053, F612-3. Substitute compatibility should be verified for your specific system.
What is the NSN for MILB5687TYPE1C0MP0SITI0NA?
MILB5687TYPE1C0MP0SITI0NA is cataloged in the U.S. Government catalog under NSN 3120-00-080-3548. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.