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Technical Data Sheet
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03891 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

03891: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, thread_direction: RIGHT-HAND, secondary_washer_style: FLAT, end_item_identification: 4940-01-601-1928, part_name_assigned_by_controlling_agency: HEIGHT ADJUSTMENT BOLT ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-645-2647, 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
03891
NSN: 5305-01-645-2647
NIINs: 016452647, 017307667
FSC: 5305 — Screws
CAGE: 0K7M2 — CLEMCO INDUSTRIES CORP. DBA CLEMCO INDUSTRIES CORP DIV CLEMCO (USA)
SPECIFICATIONS
head_styleHEXAGON
washer_quantity1
thread_directionRIGHT-HAND
secondary_washer_styleFLAT
end_item_identification4940-01-601-1928
part_name_assigned_by_controlling_agencyHEIGHT ADJUSTMENT BOLT ASSEMBLY
NSN5305-01-645-2647
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 03891 · 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
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 24
TECHNICAL CHARACTERISTICS
THREAD LENGTH1.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEROUND
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW
THREAD QUANTITY PER INCH24
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03891?
03891 is a SCREW,MACHINE.
What is the NSN for 03891?
03891 is cataloged in the U.S. Government catalog under NSN 5305-01-645-2647. This indicates validated use in U.S. government and defense supply chains.
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