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B9438 — CRANK,HAND

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B9438: CRANK,HAND.

The CRANK,HAND is a the manufacturer industrial component. Key specifications include ratchet: NOT INCLUDED, material: STEEL OVERALL, arm_style: STRAIGHT, handle_style: RECESSED ROUND, shank_height: 5.375 INCHES NOMINAL IN, drive_end_style: EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-651-2079, 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
B9438
NSN: 5340-00-651-2079
FSC: 5340 — Hardware, Commercial
CAGE: 52793 — SAGINAW PRODUCTS CORPORATION DBA CIGNYS (USA)
SPECIFICATIONS
ratchetNOT INCLUDED
materialSTEEL OVERALL
arm_styleSTRAIGHT
handle_styleRECESSED ROUND
shank_height5.375 INCHES NOMINAL IN
drive_end_styleEXTERNAL
mounting_methodINTEGRAL HANDLE
surface_treatmentZINC OVERALL
crank_throw_length12.000 INCHES NOMINAL IN
crank_overall_length8.812 INCHES NOMINAL IN
drive_facility_styleSQUARE
NSN5340-00-651-2079
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B9438 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HANDLE STYLE: RECESSED ROUND
•
SHANK HEIGHT: 5.375 INCHES NOMINAL IN
•
MOUNTING METHOD: INTEGRAL HANDLE
•
RATCHET: NOT INCLUDED
•
DRIVE END STYLE: EXTERNAL
•
DRIVE FACILITY STYLE: SQUARE
•
CRANK OVERALL LENGTH: 8.812 INCHES NOMINAL IN
•
CRANK THROW LENGTH: 12.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HANDLE STYLERECESSED ROUND
SHANK HEIGHT5.375 INCHES NOMINAL IN
MOUNTING METHODINTEGRAL HANDLE
RATCHETNOT INCLUDED
DRIVE END STYLEEXTERNAL
DRIVE FACILITY STYLESQUARE
CRANK OVERALL LENGTH8.812 INCHES NOMINAL IN
CRANK THROW LENGTH12.000 INCHES NOMINAL IN
ARM STYLESTRAIGHT
SURFACE TREATMENTZINC OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
8019927Reference document
Same NSN cross-reference
Reference document — Secondary reference
8328228Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 B9438?
B9438 is a CRANK,HAND.
What parts can replace B9438?
There are 2 known substitutes for B9438: 8019927, 8328228. Substitute compatibility should be verified for your specific system.
What is the NSN for B9438?
B9438 is cataloged in the U.S. Government catalog under NSN 5340-00-651-2079. 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.