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Technical Data Sheet
177003-7 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 11.00 MILLIMETERS NOMINAL MM, overall_width: 7.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-358-8784, 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
177003-7
NSN: 5310-00-358-8784
FSC: 5310
CAGE: 93568 — HARSCO CORP BMY-COMBAT SYSTEMS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter11.00 MILLIMETERS NOMINAL MM
overall_width7.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RING, MAGNETO TYPE, S EPARABLE
features_providedALIGNING RING
overall_outside_diameter32.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN5310-00-358-8784
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 177003-7 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: STEEL COMP 1020 OVERALL
NUT STYLE: HEXAGON
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
NOMINAL THREAD SIZE: 1.000 INCHES IN
BEARING SURFACE TYPE: CHAMFERED
THREAD SERIES: UNEF
THREAD QUANTITY PER INCH: 20
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1020 OVERALL
NUT STYLEHEXAGON
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NOMINAL THREAD SIZE1.000 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD SERIESUNEF
THREAD QUANTITY PER INCH20
THREAD CLASS2B
WIDTH ACROSS FLATS1.500 INCHES NOMINAL IN
NUT HEIGHT0.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
NP12-11-1Interchangeable
interchangeable cross-reference
interchangeable
FF-B-171B SUPP 1 TYPE 132 GR00Interchangeable
interchangeable cross-reference
interchangeable
FB11Interchangeable
interchangeable cross-reference
interchangeable
35625Interchangeable
interchangeable cross-reference
interchangeable
206434Interchangeable
interchangeable cross-reference
interchangeable
01770-0037Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 177003-7?
177003-7 is a BEARING,BALL,ANNULAR.
What parts can replace 177003-7?
There are 6 known substitutes for 177003-7: NP12-11-1, FF-B-171B SUPP 1 TYPE 132 GR00, FB11 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 177003-7?
177003-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-358-8784. This indicates validated use in U.S. government and defense supply chains.
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