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2189854 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2189854: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER COUNTERSUNK, thread_class: 3A A, head_diameter: 0.510 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN, thread_length: 0.880 INCHES NOMINAL IN, screw_material: NICKEL ALLOY, fastener_length: 0.890 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-347-0736, 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
2189854
NSN: 5305-01-347-0736
FSC: 5305 — Screws
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
head_styleFILLISTER COUNTERSUNK
thread_class3A A
head_diameter0.510 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
thread_length0.880 INCHES NOMINAL IN
screw_materialNICKEL ALLOY
fastener_length0.890 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle45.0 DEGREES NOMINAL
internal_drive_styleSLOT
end_item_identificationJ52 ENGINE
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch28
NSN5305-01-347-0736
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2189854 · 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: 0.890 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS7471 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.880 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FILLISTER COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: NICKEL ALLOY
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.890 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS7471 ASSN STD SINGLE MATERIAL RESPONSE
THREAD LENGTH0.880 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFILLISTER COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALNICKEL ALLOY
INTERNAL DRIVE STYLESLOT
COUNTERSINK ANGLE45.0 DEGREES NOMINAL
THREAD CLASS3A A
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
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 2189854?
2189854 is a SCREW,MACHINE.
What is the NSN for 2189854?
2189854 is cataloged in the U.S. Government catalog under NSN 5305-01-347-0736. 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.