PartsTable
Technical Data Sheet
Download PDF

61-2904-3 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

61-2904-3: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.750 INCHES NOMINAL IN, material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, style_designator: INTERNALLY THREADED FULL LENGTH, surface_treatment: CADMIUM AND CHROMATE OVERALL, width_across_flats: 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN, cross-sectional_shape: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-260-0690, 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
61-2904-3
NSN: 5340-01-260-0690
FSC: 5340 — Hardware, Commercial
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
length0.750 INCHES NOMINAL IN
materialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
style_designatorINTERNALLY THREADED FULL LENGTH
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
cross-sectional_shapeHEXAGON
specification/standard_data80205-NAS1786 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classificationMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
NSN5340-01-260-0690
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 61-2904-3 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
•
LENGTH: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
•
SPECIFICATION/STANDARD DATA: 80205-NAS1786 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
LENGTH0.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA80205-NAS1786 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CROSS-SECTIONAL SHAPEHEXAGON
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy 61-2904-3?
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 61-2904-3?
61-2904-3 is a STANDOFF,THREADED,SPACING.
What is the NSN for 61-2904-3?
61-2904-3 is cataloged in the U.S. Government catalog under NSN 5340-01-260-0690. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 61-2904-3