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5A12221 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5A12221: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include body_style: STRAIGHT SHAPE W/FLANGE, head_style: HEXAGON, head_height: 0.080 INCHES NOMINAL IN, thread_class: 3A A, hole_diameter: 0.031 INCHES NOMINAL IN, overall_width: 2.300 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-639-0059, 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
5A12221
NSN: 5305-00-639-0059
NIINs: 006390059, 014400333
FSC: 5305 — Screws
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE W/FLANGE
head_styleHEXAGON
head_height0.080 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.031 INCHES NOMINAL IN
hole_quantity1
overall_width2.300 INCHES NOMINAL IN
thread_length0.200 INCHES MINIMUM IN
overall_length2.700 INCHES NOMINAL IN
screw_materialSTEEL COMP 8735
fastener_length1.010 INCHES NOMINAL IN
thread_directionRIGHT-HAND
NSN5305-00-639-0059
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5A12221 · 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: 0.080 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 1.010 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6357 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.200 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.080 INCHES NOMINAL IN
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH1.010 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6357 ASSN STD SINGLE MATERIAL RESPONSE
THREAD LENGTH0.200 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL IN
SCREW MATERIALSTEEL COMP 8735
SUBSTITUTES & CROSS-REFERENCES 1
00628Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5A12221?
5A12221 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 5A12221?
There is 1 known substitute for 5A12221: 00628. Substitute compatibility should be verified for your specific system.
What is the NSN for 5A12221?
5A12221 is cataloged in the U.S. Government catalog under NSN 5305-00-639-0059. 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.