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ERD217 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ERD217: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, head_style: DEE, head_height: 0.188 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.500 INCHES NOMINAL IN, thread_length: 0.500 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-073-3018, 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
ERD217
NSN: 5306-00-073-3018
FSC: 5306 — Bolts
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
head_styleDEE
head_height0.188 INCHES NOMINAL IN
thread_class3A A
head_diameter0.500 INCHES NOMINAL IN
thread_length0.500 INCHES MINIMUM IN
fastener_length1.750 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNF
NSN5306-00-073-3018
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ERD217 · 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
•
HEAD HEIGHT: 0.188 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.175 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.500 INCHES MINIMUM IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: DEE
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.188 INCHES NOMINAL IN
FASTENER LENGTH1.750 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.175 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
THREAD LENGTH0.500 INCHES MINIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEDEE
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 2
377024CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5306000733018Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ERD217?
ERD217 is a BOLT,SHOULDER.
What parts can replace ERD217?
There are 2 known substitutes for ERD217: 377024C, 5306000733018. Substitute compatibility should be verified for your specific system.
What is the NSN for ERD217?
ERD217 is cataloged in the U.S. Government catalog under NSN 5306-00-073-3018. This indicates validated use in U.S. government and defense supply chains.
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