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Technical Data Sheet
PartsTable / MRO / 120955
120955 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

The ACOUSTIC DEVICE,COUNTERMEASURE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN, head_height: 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, neck_length: 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-012-0955, 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→ 120955
NSN: 5306-00-012-0955
FSC: 5306
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBUTTON
neck_width0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN
head_height0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
neck_length0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
thread_class2A A
head_diameter1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN
thread_length1.500 INCHES MINIMUM IN
fastener_length2.500 INCHES NOMINAL IN
hardness_rating95.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
type/model_designationMK2 MOD-4
NSN5306-00-012-0955
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 120955 · 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: 1.500 INCHES MINIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HARDNESS RATING: 95.0 ROCKWELL B MAXIMUM OVERALL
•
NECK WIDTH: 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN
•
HEAD DIAMETER: 1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.500 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 11
•
HEAD STYLE: BUTTON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.500 INCHES MINIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING95.0 ROCKWELL B MAXIMUM OVERALL
NECK WIDTH0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN
HEAD DIAMETER1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN
FASTENER LENGTH2.500 INCHES NOMINAL IN
THREAD QUANTITY PER INCH11
HEAD STYLEBUTTON
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MS35751-53Upgraded Successor
successor cross-reference
successor
FFB584Upgraded Successor
successor cross-reference
successor
119430Upgraded Successor
successor cross-reference
successor
21260Upgraded Successor
successor cross-reference
successor
120231Upgraded Successor
successor cross-reference
successor
NASM35751Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120955?
120955 is a ACOUSTIC DEVICE,COUNTERMEASURE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 120955?
There are 10 known substitutes for 120955: MS35751-53, FFB584, 119430 and 7 more. Substitute compatibility should be verified for your specific system.
Is 120955 still available?
120955 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026