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Technical Data Sheet
PartsTable / COMPONENT / 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1
3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1 ✓ Verified by PartsTable
— · BOLT SCREW
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 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1 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 5305-01-041-2828, 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
3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1
NSN: 5305-01-041-2828
FSC: 5305
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1
NSN5305-01-041-2828
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1 · 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: 1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD CLASS: 2A A
•
MATERIAL: NICKEL ALLOY OVERALL
•
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLASS 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FASTENER LENGTH: 2.750 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2A A
MATERIALNICKEL ALLOY OVERALL
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASS 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FASTENER LENGTH2.750 INCHES NOMINAL IN
WIDTH BETWEEN FLATS1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
NOMINAL THREAD DIAMETER0.750 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
MS35311-190Interchangeable
interchangeable cross-reference
interchangeable
800-0750-22-320Interchangeable
interchangeable cross-reference
interchangeable
3/4-10UNC X 2-3/4 LGInterchangeable
interchangeable cross-reference
interchangeable
7/8-9UNC-2A X 4IN CLASS A TYPL1Interchangeable
interchangeable cross-reference
interchangeable
MS35311-217Interchangeable
interchangeable cross-reference
interchangeable
MS35311-217L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1?
3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1 is a 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1.
What parts can replace 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1?
There are 21 known substitutes for 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1: MS35311-190, 800-0750-22-320, 3/4-10UNC X 2-3/4 LG and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1?
3/4-10UNC-2A X 2 3/4 TYPE 1 CLL1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-041-2828. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026