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301-11A — ADAPTER

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

301-11A: ADAPTER.

The ADAPTER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 2330 OVERALL, head_style: HEXAGON, head_height: 0.375 INCHES NOMINAL IN, thread_class: 3A A, end_item_name: VALVE, thread_length: 0.750 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-208-1176, 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
MRO→ MRO_GENERAL→ 301-11A
NSN: 5306-00-208-1176
NIINs: 002081176, 006113147, 013557261
FSC: 5306 — Bolts
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL COMP 2330 OVERALL
head_styleHEXAGON
head_height0.375 INCHES NOMINAL IN
thread_class3A A
end_item_nameVALVE
thread_length0.750 INCHES MINIMUM IN
shoulder_shapeROUND FIRST SHOULDER
end_item_source14561
fastener_length2.750 INCHES NOMINAL IN
shoulder_length1.844 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.529 INCHES MINIMUM AND 0.530 INCHES MAXIMUM FIRST SHOULDER IN
NSN5306-00-208-1176
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 301-11A · 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: 0.375 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.750 INCHES NOMINAL IN
•
SHOULDER LENGTH: 1.844 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.529 INCHES MINIMUM AND 0.530 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.750 INCHES MINIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
SHANK UNTHREADED HOLE DIAMETER: 0.141 INCHES NOMINAL FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.375 INCHES NOMINAL IN
FASTENER LENGTH2.750 INCHES NOMINAL IN
SHOULDER LENGTH1.844 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.529 INCHES MINIMUM AND 0.530 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.750 INCHES MINIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES NOMINAL FIRST HOLE IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 3
7540306Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
214568Reference document
Same NSN cross-reference
Reference document — Secondary reference
96668Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 301-11A?
301-11A is a ADAPTER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 301-11A?
There are 3 known substitutes for 301-11A: 7540306, 214568, 96668. Substitute compatibility should be verified for your specific system.
What is the NSN for 301-11A?
301-11A is cataloged in the U.S. Government catalog under NSN 5306-00-208-1176. 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.