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MA25-21056 — SCREW,ASSEMBLED WASHER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MA25-21056: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN, fastener_length: 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND, width_between_flats: 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-088-6019, 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
MA25-21056
NSN: 5305-01-088-6019
FSC: 5305 — Screws
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
fastener_length1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
washer_quantity1
thread_directionRIGHT-HAND
width_between_flats0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
primary_washer_styleSPLIT HELICAL RING
extended_washer_diameter0.628 INCHES MINIMUM IN
extended_washer_thickness0.094 INCHES NOMINAL IN
primary_washer_outside_diameter0.635 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
NSN5305-01-088-6019
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MA25-21056 · 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
•
EXTENDED WASHER THICKNESS: 0.094 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.628 INCHES MINIMUM IN
•
PRIMARY WASHER OUTSIDE DIAMETER: 0.635 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
PRIMARY WASHER STYLE: SPLIT HELICAL RING
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.094 INCHES NOMINAL IN
HEAD HEIGHT0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
FASTENER LENGTH1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.628 INCHES MINIMUM IN
PRIMARY WASHER OUTSIDE DIAMETER0.635 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
HEAD STYLEHEXAGON EXTENDED WASHER
PRIMARY WASHER STYLESPLIT HELICAL RING
THREAD DIRECTIONRIGHT-HAND
PRIMARY WASHER MATERIAL THICKNESS0.094 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
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 1
10087763Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 MA25-21056?
MA25-21056 is a SCREW,ASSEMBLED WASHER.
What parts can replace MA25-21056?
There is 1 known substitute for MA25-21056: 10087763. Substitute compatibility should be verified for your specific system.
What is the NSN for MA25-21056?
MA25-21056 is cataloged in the U.S. Government catalog under NSN 5305-01-088-6019. 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.