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90298A639 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90298A639: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, head_style: KNURLED NO. 1, head_height: 0.250 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.562 INCHES NOMINAL IN, thread_length: 0.500 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-642-0701, 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
90298A639
NSN: 5305-01-642-0701
FSC: 5305 — Screws
CAGE: 5MQU3 — INFASTECH DECORAH LLC DBA CAMCAR DECORAH OPERATIONS DIV DECORAH OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
head_styleKNURLED NO. 1
head_height0.250 INCHES NOMINAL IN
thread_class3A A
head_diameter0.562 INCHES NOMINAL IN
thread_length0.500 INCHES NOMINAL IN
fastener_length3.745 INCHES MINIMUM AND 3.755 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_across_flats0.188 INCHES NOMINAL IN
internal_drive_styleHEXAGON
end_item_identification5895-01-580-5073
nominal_thread_diameter0.312 INCHES IN
NSN5305-01-642-0701
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90298A639 · 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
•
WIDTH ACROSS FLATS: 0.188 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.745 INCHES MINIMUM AND 3.755 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
•
INTERNAL DRIVE STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.188 INCHES NOMINAL IN
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH3.745 INCHES MINIMUM AND 3.755 INCHES MAXIMUM IN
THREAD LENGTH0.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYSHOULDER SCREW
THREAD CLASS3A A
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90298A639?
90298A639 is a SCREW,SHOULDER.
What is the NSN for 90298A639?
90298A639 is cataloged in the U.S. Government catalog under NSN 5305-01-642-0701. This indicates validated use in U.S. government and defense supply chains.
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