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MIL-DTL-27426 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MIL-DTL-27426: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, ring_style: SPIRAL, usage_design: INTERNAL, inside_diameter: 0.687 INCHES NOMINAL IN, major_thickness: 0.031 INCHES NOMINAL IN, outside_diameter: 0.817 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-017-6083, 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
MIL-DTL-27426
NSN: 5325-00-017-6083
NIINs: 000176083, 000273147, 000273164, 000428551, 000506271, 000516848, 000516849, 000673732, 000874134, 001058668, 001355092, 001446626, 001636664, 001657643, 001827020, 001930687, 001930688, 002002536, 002002550, 002005210, 002008514, 002054736, 002054747, 002056711, 002444142, 002527777, 002554428, 002825380, 002856695, 002856976, 002857964, 002903745, 003292566, 004026294, 004243982, 004392504, 004494392, 004678734, 004841630, 004905396, 005271985, 005305898, 005319178, 005319454, 005505176, 005740367, 005753628, 005768454, 005823115, 005980991, 005981215, 005981356, 005984893, 005986274, 006018277, 006213192, 006213195, 006283943, 006283950, 006347707, 006629850, 006642759, 006642805, 006645386, 006872831, 007017229, 007145452, 007168348, 007215224, 007282345, 007533646, 007616464, 007622642, 007639962, 007813307, 008042773, 008122660, 008160126, 008287572, 008340927, 008425827, 008470730, 008507044, 008551150, 008558945, 008575033, 008900002, 008992874, 008999164, 009000965, 009003813, 009004441, 009009669, 009010260, 009015113, 009037544, 009130078, 009158096, 009164349, 009165871, 009228996, 009228997, 009284602, 009349994, 009355995, 009390779, 009435323, 009435352, 009435353, 009435354, 009435355, 009438147, 009438148, 009438149, 009438150, 009438151, 009438152, 009445893, 009464679, 009470067, 009470155, 009473897, 009490369, 009520528, 009588420, 009614356, 009717376, 009860023, 009885319, 009885321, 009885322, 009934300, 010096842, 010121025, 010121026, 010121027, 010156785, 010173983, 010174612, 010210397, 010274644, 010291005, 010320932, 010342206, 010478281, 010478282, 010481336, 010483049, 010483426, 010492660, 010531659, 010609236, 010621923, 010687088, 010691776, 010699944, 010707380, 010811702, 010853125, 010853510, 010892871, 010979197, 011019020, 011064248, 011064249, 011066514, 011114226, 011114227, 011117915, 011128261, 011141491, 011169578, 011169579, 011191614, 011197068, 011207306, 011234816, 011241587, 011244555, 011254618, 011271808, 011274119, 011295665, 011315344, 011320714, 011320715, 011320716, 011321266, 011322690, 011330257, 011330258, 011330259, 011330260, 011350356, 011352604, 011361886, 011383386, 011387454, 011394490, 011396739, 011412533, 011451286, 011524713, 011525650, 011525651, 011544389, 011544390, 011556699, 011564147, 011586369, 011602429, 011686464, 011690790, 011693036, 011720360, 011720361, 011757784, 011759132, 011765752, 011775742, 011805006, 011805366, 011805367, 011815472, 011830995, 011841797, 011861788, 011861789, 011861790, 011893896, 011893898, 011897796, 011897797, 011902303, 011912767, 011913510, 011913511, 011913512, 011922439, 011923407, 011937136, 011940878, 011998257, 012002566, 012028647, 012029785, 012031388, 012032473, 012035611, 012036529, 012036530, 012047150, 012081431, 012090576, 012097628, 012098304, 012103422, 012121613, 012138714, 012143696, 012145154, 012145155, 012170301, 012174260, 012180930, 012181251, 012183696, 012196254, 012200340, 012201322, 012226108, 012241558, 012246935, 012277950, 012357025, 012367314, 012379774, 012390699, 012420980, 012425283, 012425284, 012431492, 012447990, 012498097, 012531599, 012569801, 012569802, 012569803, 012572612, 012572613, 012572614, 012573426, 012573427, 012573428, 012580429, 012594699, 012659118, 012665113, 012728425, 012732378, 012735214, 012736958, 012743020, 012748475, 012768732, 012783862, 012807141, 012827654, 012849514, 012852131, 012873646, 012881743, 012885155, 012903929, 012918176, 012935552, 012945470, 012945471, 012984908, 013034919, 013044608, 013050525, 013054563, 013069983, 013073873, 013075986, 013087294, 013114086, 013116503, 013127724, 013157563, 013197450, 013208513, 013214174, 013281787, 013316407, 013397038, 013397039, 013422851, 013429949, 013434329, 013434330, 013468058, 013540579, 013564425, 013592525, 013626504, 013626505, 013655155, 013668924, 013703813, 013721336, 013802604, 013868158, 013884476, 013927708, 013959260, 014139675, 014139679, 014141346, 014141348, 014168950, 014195457, 014217564, 014302839, 014373891, 014471750, 014473965, 014474011, 014543722, 014552477, 014575116, 014623763, 014670047, 014697960, 014732884, 014735964, 014741969, 014786241, 014788836, 014792807, 014799193, 014806524, 014950229, 014960633, 015217202, 015217203, 015239725, 015239729, 015256160, 015307366, 015328217, 015917161, 016229367, 016229846, 016245641, 016485610, 016658420, 016718621, 016718623, 016739313, 016813241, 017005628, 017005634, 017005663, 017006415, 017006450
FSC: 5325 — Fastening Devices
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
ring_styleSPIRAL
usage_designINTERNAL
inside_diameter0.687 INCHES NOMINAL IN
major_thickness0.031 INCHES NOMINAL IN
outside_diameter0.817 INCHES NOMINAL IN
surface_treatmentPASSIVATE
cross-sectional_shape_styleDOUBLE OVAL
material_document_and_classificationAMS5866 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyRING, RETAINING, SPIRAL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
NSN5325-00-017-6083
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-DTL-27426 · 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
•
MATERIAL HARDNESS RATING: 73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD NO. 66,COMPOSITION A/A FED STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 1.769 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS AND 1.625 SIZE
•
MAJOR THICKNESS: 0.062 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.513 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD NO. 66,COMPOSITION A/A FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER1.769 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS AND 1.625 SIZE
MAJOR THICKNESS0.062 INCHES NOMINAL IN
INSIDE DIAMETER1.513 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
7986914Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 MIL-DTL-27426?
MIL-DTL-27426 is a RING,RETAINING.
What parts can replace MIL-DTL-27426?
There is 1 known substitute for MIL-DTL-27426: 7986914. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-27426?
MIL-DTL-27426 is cataloged in the U.S. Government catalog under NSN 5325-00-017-6083. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.