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PartsTable / COMPONENT / 803-4385050 PIECE 67L1
803-4385050 PIECE 67L1 ✓ 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 SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A A, fastener_length: 4.000 INCHES MAXIMUM IN, special_features: SCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME), nominal_thread_diameter: 0.750 INCHES IN, thread_quantity_per_inch: 10. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-299-6598, 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
803-4385050 PIECE 67L1
NSN: 5305-01-299-6598
FSC: 5305
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A A
fastener_length4.000 INCHES MAXIMUM IN
special_featuresSCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME)
nominal_thread_diameter0.750 INCHES IN
thread_quantity_per_inch10
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
criticality_code_justificationZZZX
departure_from_cited_designatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
material_document_and_classificationQQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5305-01-299-6598
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 803-4385050 PIECE 67L1 · 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
•
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: NICKEL ALLOY OVERALL
•
FASTENER LENGTH: 4.000 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
NOMINAL THREAD DIAMETER: 0.750 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIALNICKEL ALLOY OVERALL
FASTENER LENGTH4.000 INCHES MAXIMUM IN
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.750 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESSCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME)
THREAD QUANTITY PER INCH10
CRITICALITY CODE JUSTIFICATIONZZZX
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
MIL-DTL-1222, TY IIInterchangeable
interchangeable cross-reference
interchangeable
810-4385050 ITEM 114Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222Interchangeable
interchangeable cross-reference
interchangeable
803-4385050 PIECE 67Interchangeable
interchangeable cross-reference
interchangeable
ER2642-771-01D3Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-18240L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-4385050 PIECE 67L1?
803-4385050 PIECE 67L1 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 803-4385050 PIECE 67L1?
There are 30 known substitutes for 803-4385050 PIECE 67L1: MIL-DTL-1222, TY II, 810-4385050 ITEM 114, MIL-DTL-1222 and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-4385050 PIECE 67L1?
803-4385050 PIECE 67L1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-299-6598. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026