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91286A342 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91286A342: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.31 INCHES NOMINAL IN, head_diameter: 0.75 INCHES NOMINAL IN, thread_length: 3.75 INCHES NOMINAL IN, screw_material: STEEL, hardness_rating: 33.0 ROCKWELL C NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-691-6801, 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
91286A342
NSN: 5305-01-691-6801
FSC: 5305 — Screws
CAGE: 0KVE6 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.31 INCHES NOMINAL IN
thread_class2
head_diameter0.75 INCHES NOMINAL IN
thread_length3.75 INCHES NOMINAL IN
screw_materialSTEEL
hardness_rating33.0 ROCKWELL C NOMINAL
special_featuresROHS COMPLIANT
thread_directionRIGHT-HAND
head_surface_treatmentBLACK CHEMICAL FINISH
nominal_thread_diameter0.5 INCHES IN
minimum_tensile_strength150000 POUNDS PER SQUARE INCH LBS
NSN5305-01-691-6801
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91286A342 · 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
•
HEAD HEIGHT: 0.31 INCHES NOMINAL IN
•
THREAD LENGTH: 3.75 INCHES NOMINAL IN
•
HARDNESS RATING: 33.0 ROCKWELL C NOMINAL
•
NOMINAL THREAD DIAMETER: 0.5 INCHES IN
•
HEAD SURFACE TREATMENT: BLACK CHEMICAL FINISH
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.31 INCHES NOMINAL IN
THREAD LENGTH3.75 INCHES NOMINAL IN
HARDNESS RATING33.0 ROCKWELL C NOMINAL
NOMINAL THREAD DIAMETER0.5 INCHES IN
HEAD SURFACE TREATMENTBLACK CHEMICAL FINISH
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
SPECIAL FEATURESROHS COMPLIANT
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91286A342?
91286A342 is a SCREW,MACHINE.
What is the NSN for 91286A342?
91286A342 is cataloged in the U.S. Government catalog under NSN 5305-01-691-6801. 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.