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Technical Data Sheet
PartsTable / COMPONENT / 780-25
780-25 ✓ 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

TEE ASSEMBLY,FLANGED,QUICK DISCO. Key specifications include material: STEEL COMP 316 OVERALL, thickness: 0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN, hole_diameter: 0.683 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN, outside_diameter: 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN, special_features: MATING FASTENER SIZE IS 0.625 INCH IN, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-448-3969, 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
780-25
NSN: 5305-00-448-3969
FSC: 5305
CAGE: 04773 — GTE COMMUNICATION SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
thickness0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
hole_diameter0.683 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN
outside_diameter1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
special_featuresMATING FASTENER SIZE IS 0.625 INCH IN
center_hole_shape_styleROUND
part_name_assigned_by_controlling_agencyWASHER
NSN5305-00-448-3969
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 780-25 · 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
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
THREAD SERIES DESIGNATOR: UNF
•
HEAD HEIGHT: 0.078 INCHES NOMINAL IN
•
THREAD LENGTH: 0.188 INCHES MINIMUM IN
•
HEAD STYLE: ROUND
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD QUANTITY PER INCH: 48
•
HEAD DIAMETER: 0.203 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.112 INCHES IN
THREAD SERIES DESIGNATORUNF
HEAD HEIGHT0.078 INCHES NOMINAL IN
THREAD LENGTH0.188 INCHES MINIMUM IN
HEAD STYLEROUND
INTERNAL DRIVE STYLESLOT
THREAD QUANTITY PER INCH48
HEAD DIAMETER0.203 INCHES NOMINAL IN
FASTENER LENGTH0.188 INCHES MINIMUM IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
780-25Interchangeable
interchangeable cross-reference
interchangeable
78025-100Interchangeable
interchangeable cross-reference
interchangeable
300.235Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 780-25?
780-25 is a TEE ASSEMBLY,FLANGED,QUICK DISCO.
What parts can replace 780-25?
There are 3 known substitutes for 780-25: 780-25, 78025-100, 300.235. Substitute compatibility should be verified for your specific system.
Is 780-25 still available?
780-25 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026