PartsTable
Technical Data Sheet

991 7004 — Technical Data Sheet

✓ 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 NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL EXCEPT INSERT, nut_style: HEXAGON, nut_height: 6.3 MILLIMETERS NOMINAL MM, thread_series: ISO M, locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT, special_features: MATERIAL IS STEEL PROPERTY CLASS 8. This part is cataloged in the Federal Logistics Information System under NSN 5310-01-272-2494, 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
991 7004
NSN: 5310-01-272-2494
FSC: 5310
CAGE: Z5504 — HIAB AUSTRALIA CARGOTEC AUSTRALIA PTY LTD (AUS)
SPECIFICATIONS
materialSTEEL OVERALL EXCEPT INSERT
nut_styleHEXAGON
nut_height6.3 MILLIMETERS NOMINAL MM
thread_seriesISO M
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
special_featuresMATERIAL IS STEEL PROPERTY CLASS 8
thread_directionRIGHT-HAND
width_across_flats8.0 MILLIMETERS NOMINAL MM
nominal_thread_size5.0 MILLIMETERS MM
bearing_surface_typeCHAMFERED
thread_tolerance_class6H INTERNAL
thread_pitch_in_millimeters0.8
NSN5310-01-272-2494
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 991 7004 · 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 SERIES: ISO M
•
THREAD DIRECTION: RIGHT-HAND
•
NUT HEIGHT: 6.3 MILLIMETERS NOMINAL MM
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 5.0 MILLIMETERS MM
•
WIDTH ACROSS FLATS: 8.0 MILLIMETERS NOMINAL MM
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
THREAD SERIESISO M
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT6.3 MILLIMETERS NOMINAL MM
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE5.0 MILLIMETERS MM
WIDTH ACROSS FLATS8.0 MILLIMETERS NOMINAL MM
NUT STYLEHEXAGON
SPECIAL FEATURESMATERIAL IS STEEL PROPERTY CLASS 8
THREAD TOLERANCE CLASS6H INTERNAL
THREAD PITCH IN MILLIMETERS0.8
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
17004ADXInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
17004InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WT0329InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10N50InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
295362-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
017004InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 991 7004?
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 991 7004?
991 7004 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 991 7004?
There are 14 known substitutes for 991 7004: 17004ADX, 17004, WT0329 and 11 more. Substitute compatibility should be verified for your specific system.
Is 991 7004 still available?
991 7004 is currently cancelled.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 991 7004