PartsTable
Technical Data Sheet
122498 ✓ Verified by PartsTable
Hama · 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

- For increasing the signal strength<br>- Signal amplification by 20 decibels<br>- Plug housing<br>- Input/output: coax socket/coax plug<br>- Integrated power supply unit, 230 V/50 Hz, Euro plug. Key specifications include material: STEEL OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.281 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-2498, 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
122498
NSN: 5310-00-012-2498
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleCASTELLATED, HEXAGON
nut_height0.281 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC AND CHROMATE OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch28
nondefinitive_spec/std_data5 TYPE
NSN5310-00-012-2498
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 122498 · Hama ⚠ 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
SURFACE TREATMENT: CADMIUM OR ZINC AND CHROMATE OVERALL
NOMINAL THREAD SIZE: 0.250 INCHES IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TYPE 2 CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TYPE 2 CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA: 5 TYPE
MATERIAL: STEEL OVERALL
NUT STYLE: CASTELLATED, HEXAGON
THREAD QUANTITY PER INCH: 28
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OR ZINC AND CHROMATE OVERALL
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TYPE 2 CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TYPE 2 CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA5 TYPE
MATERIALSTEEL OVERALL
NUT STYLECASTELLATED, HEXAGON
THREAD QUANTITY PER INCH28
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.281 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
303-8Interchangeable
interchangeable cross-reference
interchangeable
MILH13531Interchangeable
interchangeable cross-reference
interchangeable
2456Interchangeable
interchangeable cross-reference
interchangeable
1446-456Interchangeable
interchangeable cross-reference
interchangeable
4067-70-456Interchangeable
interchangeable cross-reference
interchangeable
MS28775-456Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 122498?
122498 is a NUT,PLAIN,CASTELLATED,HEXAGON manufactured by Hama.
What parts can replace 122498?
There are 10 known substitutes for 122498: 303-8, MILH13531, 2456 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 122498?
122498 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-2498. This indicates validated use in U.S. government and defense supply chains.
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