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638927 — TIRE,ROLLER,RUBBER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

638927: TIRE,ROLLER,RUBBER.

The TIRE,ROLLER,RUBBER is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.371 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, thread_length: 0.317 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN, screw_material: NICKEL ALLOY, fastener_length: 0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-014-6174, 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
638927
NSN: 5305-00-014-6174
NIINs: 000146174, 011483535
FSC: 5305 — Screws
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class3A A
head_diameter0.371 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_length0.317 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
screw_materialNICKEL ALLOY
fastener_length0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_styleTORQUE SET
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5305-00-014-6174
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 638927 · 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: 0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5708 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.317 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: NICKEL ALLOY
•
INTERNAL DRIVE STYLE: TORQUE SET
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5708 ASSN STD SINGLE MATERIAL RESPONSE
THREAD LENGTH0.317 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALNICKEL ALLOY
INTERNAL DRIVE STYLETORQUE SET
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
THREAD CLASS3A A
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 638927?
638927 is a TIRE,ROLLER,RUBBER.
What is the NSN for 638927?
638927 is cataloged in the U.S. Government catalog under NSN 5305-00-014-6174. This indicates validated use in U.S. government and defense supply chains.
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