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MS51959-41 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS51959-41: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK UNDERCUT, head_height: 0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, thread_length: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, screw_material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-765-4244, 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
MS51959-41
NSN: 5305-00-765-4244
NIINs: 007654244, 007654252, 014638905
FSC: 5305 — Screws
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK UNDERCUT
head_height0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_length0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
screw_materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
fastener_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentPASSIVATE
NSN5305-00-765-4244
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51959-41 · 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: 0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES
•
THREAD LENGTH: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK UNDERCUT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES
THREAD LENGTH0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 7
MS35200-38Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AN505C8-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
342-0076-000Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8929207-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
40524005016Reference document
Same NSN cross-reference
Reference document — Secondary reference
35249-48Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS51959-41?
MS51959-41 is a SCREW,MACHINE.
What parts can replace MS51959-41?
There are 7 known substitutes for MS51959-41: MS35200-38, AN505C8-4, 342-0076-000 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51959-41?
MS51959-41 is cataloged in the U.S. Government catalog under NSN 5305-00-765-4244. This indicates validated use in U.S. government and defense supply chains.
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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.