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063011 — PERISCOPE SUBASSEMBLY

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

063011: PERISCOPE SUBASSEMBLY.

The PERISCOPE SUBASSEMBLY is a the manufacturer industrial component. Key specifications include major_components: ROTOR ASSY 1; GEAR ASSY 2; MOTOR 1, end_item_identification: MODEL 977 PERISCOPE SYSTEM. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-769-6354, 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
063011
NSN: 3120-00-769-6354
NIINs: 007696354, 011812293
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 77640 — ZF ACTIVE SAFETY AND ELECTRONICS US LLC DIV TRW COMMERCIAL STEERING SYSTEMS (USA)
SPECIFICATIONS
major_componentsROTOR ASSY 1; GEAR ASSY 2; MOTOR 1
end_item_identificationMODEL 977 PERISCOPE SYSTEM
NSN3120-00-769-6354
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 063011 · 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
•
BODY OUTSIDE DIAMETER: 1.0010 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN
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STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
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MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-13506,COMP 14 MIL SPEC SINGLE MATERIAL RESPONSE INNER LAYER
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BODY INSIDE DIAMETER: 0.8720 INCHES MINIMUM AND 0.8730 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1020 OUTER LAYER
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER1.0010 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-13506,COMP 14 MIL SPEC SINGLE MATERIAL RESPONSE INNER LAYER
BODY INSIDE DIAMETER0.8720 INCHES MINIMUM AND 0.8730 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1020 OUTER LAYER
MATERIALLEAD ALLOY UNS L53585 INNER LAYER
SUBSTITUTES & CROSS-REFERENCES 2
GPW3587Reference document
Same NSN cross-reference
Reference document — Secondary reference
639090Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 063011?
063011 is a PERISCOPE SUBASSEMBLY.
What parts can replace 063011?
There are 2 known substitutes for 063011: GPW3587, 639090. Substitute compatibility should be verified for your specific system.
What is the NSN for 063011?
063011 is cataloged in the U.S. Government catalog under NSN 3120-00-769-6354. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
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.