PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 7/8-9 UNC-2B
7/8-9 UNC-2B ✓ 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 7/8-9 UNC-2B is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-332-1513, 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
7/8-9 UNC-2B
NSN: 5310-01-332-1513
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number7/8-9 UNC-2B
NSN5310-01-332-1513
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7/8-9 UNC-2B · 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
•
THREAD QUANTITY PER INCH: 9
•
NOMINAL THREAD SIZE: 0.875 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
BEARING SURFACE TYPE: CHAMFERED
•
NUT STYLE: HEXAGON
•
WIDTH ACROSS FLATS: 1.312 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
NUT HEIGHT: 0.776 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH9
NOMINAL THREAD SIZE0.875 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED
NUT STYLEHEXAGON
WIDTH ACROSS FLATS1.312 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
NUT HEIGHT0.776 INCHES MAXIMUM IN
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
216-6364407PCF11Interchangeable
interchangeable cross-reference
interchangeable
0.87509UNC2BT1G2NSA/BACInterchangeable
interchangeable cross-reference
interchangeable
7/8-9UNC-2BInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222,TYIII,GR 7,STYAInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222L1Interchangeable
interchangeable cross-reference
interchangeable
MILS1222TABLE7SYMB0L4 7-8L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 7/8-9 UNC-2B?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 7/8-9 UNC-2B?
7/8-9 UNC-2B is a 7/8-9 UNC-2B.
What parts can replace 7/8-9 UNC-2B?
There are 11 known substitutes for 7/8-9 UNC-2B: 216-6364407PCF11, 0.87509UNC2BT1G2NSA/BAC, 7/8-9UNC-2B and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7/8-9 UNC-2B?
7/8-9 UNC-2B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-332-1513. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 7/8-9 UNC-2B

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026