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91801A270 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91801A270: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_diameter: 9.2 MILLIMETERS NOMINAL MM, thread_length: 27.5 MILLIMETERS NOMINAL MM, screw_material: STEEL COMP 316 OR STEEL CORROSION RESISTING, fastener_length: 30.0 MILLIMETERS NOMINAL MM, hardness_rating: 75.0 ROCKWELL B NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-563-3814, 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
91801A270
NSN: 5305-01-563-3814
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
head_diameter9.2 MILLIMETERS NOMINAL MM
thread_length27.5 MILLIMETERS NOMINAL MM
screw_materialSTEEL COMP 316 OR STEEL CORROSION RESISTING
fastener_length30.0 MILLIMETERS NOMINAL MM
hardness_rating75.0 ROCKWELL B NOMINAL
special_featuresDIN SPEC 965 MET
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL
internal_drive_styleCROSS RECESS TYPE II
nominal_thread_diameter5.0 MILLIMETERS MM
minimum_tensile_strength75000 POUNDS PER SQUARE INCH LBS
NSN5305-01-563-3814
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91801A270 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENER LENGTH: 30.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 0.8
•
THREAD LENGTH: 27.5 MILLIMETERS NOMINAL MM
•
HARDNESS RATING: 75.0 ROCKWELL B NOMINAL
•
NOMINAL THREAD DIAMETER: 5.0 MILLIMETERS MM
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 316 OR STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
FASTENER LENGTH30.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS0.8
THREAD LENGTH27.5 MILLIMETERS NOMINAL MM
HARDNESS RATING75.0 ROCKWELL B NOMINAL
NOMINAL THREAD DIAMETER5.0 MILLIMETERS MM
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 316 OR STEEL CORROSION RESISTING
SPECIAL FEATURESDIN SPEC 965 MET
MINIMUM TENSILE STRENGTH75000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 1
12500777Reference 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 91801A270?
91801A270 is a SCREW,MACHINE.
What parts can replace 91801A270?
There is 1 known substitute for 91801A270: 12500777. Substitute compatibility should be verified for your specific system.
What is the NSN for 91801A270?
91801A270 is cataloged in the U.S. Government catalog under NSN 5305-01-563-3814. This indicates validated use in U.S. government and defense supply chains.
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