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1820921C1 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1820921C1: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include thread_length: 28.0 MILLIMETERS MINIMUM STUD THREAD MM, overall_length: 30.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND STUD THREAD, surface_treatment: PHOSPHATE OVERALL, end_item_identification: MRAP - COMMON NSN - USED ON 4 MRAP VARIANTS AND 1 OTHER WEAPON SYSTEM; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS, part_name_assigned_by_controlling_agency: STUD, M8 X 1.25. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-556-4964, 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
1820921C1
NSN: 5307-01-556-4964
FSC: 5307 — Studs
CAGE: 338X5 — ND DEFENSE LLC (USA)
SPECIFICATIONS
thread_length28.0 MILLIMETERS MINIMUM STUD THREAD MM
overall_length30.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentPHOSPHATE OVERALL
end_item_identificationMRAP - COMMON NSN - USED ON 4 MRAP VARIANTS AND 1 OTHER WEAPON SYSTEM; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS
part_name_assigned_by_controlling_agencySTUD, M8 X 1.25
NSN5307-01-556-4964
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1820921C1 · 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: 28.0 MILLIMETERS MINIMUM STUD THREAD MM
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
SURFACE TREATMENT: PHOSPHATE OVERALL
TECHNICAL CHARACTERISTICS
THREAD LENGTH28.0 MILLIMETERS MINIMUM STUD THREAD MM
OVERALL LENGTH30.0 MILLIMETERS NOMINAL MM
THREAD DIRECTIONRIGHT-HAND STUD THREAD
SURFACE TREATMENTPHOSPHATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSTUD, M8 X 1.25
END ITEM IDENTIFICATIONMRAP - COMMON NSN - USED ON 4 MRAP VARIANTS AND 1 OTHER WEAPON SYSTEM; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS
SUBSTITUTES & CROSS-REFERENCES 1
EMD-1275Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 1820921C1?
1820921C1 is a STUD,PLAIN.
What parts can replace 1820921C1?
There is 1 known substitute for 1820921C1: EMD-1275. Substitute compatibility should be verified for your specific system.
What is the NSN for 1820921C1?
1820921C1 is cataloged in the U.S. Government catalog under NSN 5307-01-556-4964. 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.