PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS51861-12
MS51861-12 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

SHIELD,AIRCRAFT GROUND SERVICING. Key specifications include latch: NOT INCLUDED, shape: HALF ROUNDED, handle: FURNISHED, diameter: 22.874 INCHES NOMINAL IN, thickness: 0.750 INCHES NOMINAL IN, design_type: PLUG. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-140-8001, 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
MS51861-12
NSN: 5305-00-140-8001
FSC: 5305
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
latchNOT INCLUDED
shapeHALF ROUNDED
handleFURNISHED
diameter22.874 INCHES NOMINAL IN
thickness0.750 INCHES NOMINAL IN
design_typePLUG
furnished_itemsWARNING STREAMER
handle_quantity2
preheater_duct_openingNOT INCLUDED
end_item_identificationOV-1AF/B/C/D AND YAO-1 AIRCRAFT
cover/plug_protrusion_typeW/STOPS
NSN5305-00-140-8001
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51861-12 · 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
•
NONMACHINE THREAD STYLE: GIMLET POINT (TYPE A, AB OR BA)
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
FEATURES PROVIDED: CASEHARDENED
•
HEAD STYLE: PAN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: AB TYPE
•
HEAD DIAMETER: 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
END ITEM IDENTIFICATIONARMORED MULTI-PURPOSE VEHICLE (AMPV)
NONMACHINE NOMINAL THREAD DIAMETER0.112 INCHES IN
FEATURES PROVIDEDCASEHARDENED
HEAD STYLEPAN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NONDEFINITIVE SPEC/STD DATAAB TYPE
HEAD DIAMETER0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
42-100Interchangeable
interchangeable cross-reference
interchangeable
134GT1011Interchangeable
interchangeable cross-reference
interchangeable
MIL-A-8625FInterchangeable
interchangeable cross-reference
interchangeable
SPK-2Interchangeable
interchangeable cross-reference
interchangeable
42110Interchangeable
interchangeable cross-reference
interchangeable
1552-001-01 ID 8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS51861-12?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS51861-12?
MS51861-12 is a SHIELD,AIRCRAFT GROUND SERVICING.
What parts can replace MS51861-12?
There are 14 known substitutes for MS51861-12: 42-100, 134GT1011, MIL-A-8625F and 11 more. Substitute compatibility should be verified for your specific system.
Is MS51861-12 still available?
MS51861-12 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS51861-12

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026