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91257 — SCREW,MACHINE

✓ Government record, cited
— · MOTOR
PRODUCT OVERVIEW

91257: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN, thread_length: 1.500 INCHES MAXIMUM IN, screw_material: STEEL. This part is cataloged in the U.S.

Government catalog under NSN 6115-00-103-9248, 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
91257
NSN: 6115-00-103-9248
NIINs: 001039248, 002060722
FSC: 6115 — Generators and Generator Sets, Electrical
CAGE: 93235 — TURBODYNE DIV OF DRESSER INDUSTRIES INC SEE CODE 0BR59 (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
head_height0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
thread_length1.500 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length1.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN6115-00-103-9248
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 91257 · OEM ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 2
9125-001Reference document
Same NSN cross-reference
Reference document — Secondary reference
W9125-001Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 91257?
91257 is a SCREW,MACHINE.
What parts can replace 91257?
There are 2 known substitutes for 91257: 9125-001, W9125-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 91257?
91257 is cataloged in the U.S. Government catalog under NSN 6115-00-103-9248. This indicates validated use in U.S. government and defense supply chains.
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