PartsTable
Technical Data Sheet
179885 ✓ 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 COUPLER ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2A A, overall_width: 5.460 INCHES NOMINAL IN, thread_length: 1.250 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-010-0160, 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 179885
NSN: 5305-00-010-0160
FSC: 5305
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class2A A
overall_width5.460 INCHES NOMINAL IN
thread_length1.250 INCHES MINIMUM IN
overall_length5.620 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES THREADS
fastener_length1.500 INCHES NOMINAL IN
hardness_rating80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
special_featuresT.O. 31P2-2MSQ77-4-1; N/H/A RECEIVER-TRANSMITTER GROUP
thread_directionRIGHT-HAND
NSN5305-00-010-0160
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 179885 · 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 CLASS: 2A A
THREAD LENGTH: 1.250 INCHES MINIMUM IN
THREAD QUANTITY PER INCH: 13
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
MATERIAL: STEEL OVERALL
SURFACE FINISH: 63.0 MICROINCHES THREADS
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
THREAD LENGTH1.250 INCHES MINIMUM IN
THREAD QUANTITY PER INCH13
HARDNESS RATING80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
MATERIALSTEEL OVERALL
SURFACE FINISH63.0 MICROINCHES THREADS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 2 GRADE
SURFACE FINISH125.0 MICROINCHES BEARING SURFACE OF HEAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
15447Interchangeable
interchangeable cross-reference
interchangeable
21431Interchangeable
interchangeable cross-reference
interchangeable
802369Interchangeable
interchangeable cross-reference
interchangeable
85001042Interchangeable
interchangeable cross-reference
interchangeable
100160Interchangeable
interchangeable cross-reference
interchangeable
179885Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 179885?
179885 is a COUPLER ASSEMBLY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 179885?
There are 19 known substitutes for 179885: 15447, 21431, 802369 and 16 more. Substitute compatibility should be verified for your specific system.
Is 179885 still available?
179885 is currently cancelled.
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