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178GP — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

178GP: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include height: 0.634 INCHES NOMINAL IN, material: STEEL, face_size: 0.312, nut_style: HEXAGON, body_width: 2.125 INCHES NOMINAL IN, bore_shape: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-810-7609, 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
178GP
NSN: 3120-00-810-7609
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 75174 — JOHNSON BRONZE CO (USA)
SPECIFICATIONS
shapeU
height0.634 INCHES NOMINAL IN
materialSTEEL
face_size0.312
nut_styleHEXAGON
body_width2.125 INCHES NOMINAL IN
bore_shapeSTRAIGHT
nut_height0.188 INCHES MAXIMUM IN
point_typeROUND LOOP
body_height2.312 INCHES NOMINAL IN
body_length2.312 INCHES NOMINAL IN
lubricationDRY FILM LUBRICANT
NSN3120-00-810-7609
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 178GP · 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
SUBSTITUTES & CROSS-REFERENCES 7
PX716Reference document
Same NSN cross-reference
Reference document — Secondary reference
1144Reference document
Same NSN cross-reference
Reference document — Secondary reference
SH190Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35771-91Reference document
Same NSN cross-reference
Reference document — Secondary reference
H103Reference document
Same NSN cross-reference
Reference document — Secondary reference
10051Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 178GP?
178GP is a BEARING,SLEEVE.
What parts can replace 178GP?
There are 7 known substitutes for 178GP: PX716, 1144, SH190 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 178GP?
178GP is cataloged in the U.S. Government catalog under NSN 3120-00-810-7609. 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.