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91830A634 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91830A634: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 304 OVERALL, head_style: KNURLED NO. 1, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 1.250 INCHES NOMINAL IN, thread_length: 0.625 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-581-4215, 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
91830A634
NSN: 5305-01-581-4215
FSC: 5305 — Screws
CAGE: 0AG09 — SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 304 OVERALL
head_styleKNURLED NO. 1
head_height0.250 INCHES NOMINAL IN
thread_class2A A
head_diameter1.250 INCHES NOMINAL IN
thread_length0.625 INCHES NOMINAL IN
shoulder_shapeROUND ALL SHOULDERS
fastener_length1.375 INCHES NOMINAL IN
hardness_rating80.0 ROCKWELL B NOMINAL OVERALL
shoulder_length0.500 INCHES NOMINAL ALL SHOULDERS IN
special_featuresTIP STYLE-FLAT POINT (NO DIMENSIONS GIVEN);MATERIAL 18-8 STAINLESS STEEL
thread_directionRIGHT-HAND
NSN5305-01-581-4215
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91830A634 · 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: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.375 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.500 INCHES NOMINAL ALL SHOULDERS IN
•
SHOULDER DIAMETER: 0.625 INCHES NOMINAL ALL SHOULDERS IN
•
THREAD LENGTH: 0.625 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND ALL SHOULDERS
•
HARDNESS RATING: 80.0 ROCKWELL B NOMINAL OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH1.375 INCHES NOMINAL IN
SHOULDER LENGTH0.500 INCHES NOMINAL ALL SHOULDERS IN
SHOULDER DIAMETER0.625 INCHES NOMINAL ALL SHOULDERS IN
THREAD LENGTH0.625 INCHES NOMINAL IN
SHOULDER SHAPEROUND ALL SHOULDERS
HARDNESS RATING80.0 ROCKWELL B NOMINAL OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
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 91830A634?
91830A634 is a THUMBSCREW.
What is the NSN for 91830A634?
91830A634 is cataloged in the U.S. Government catalog under NSN 5305-01-581-4215. This indicates validated use in U.S. government and defense supply chains.
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