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NSN 5310-00-086-9944Government record, cited
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Washer, Key5310-00-086-9944

NSN 5310-00-086-9944 · NIIN 000869944 · Part number 547A003091
Northrop Grumman Systems Corporation · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 03956
Government record, cited
NSN 5310-00-086-9944 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-086-9944. Manufacturer of record part number: 547A003091.
Also searched as  5310-00-086-9944 · 5310000869944 · NIIN 000869944 · 00-086-9944 · FSC 5310 Nuts and Washers · CAGE 03956 · 547A003091 · A547-650 · 3091 · 003091
Nearby stock numbers  ·
AF 1.021 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN H 0.122 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN NUT + WASHER
5310-00-086-9944 — Nuts and Washers
Features
  • Washer,key — FSC 5310
  • Internal Straight Key Width: 0.122 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
  • Distance From Centerline to Top of Internal Key: 0.406 INCHES NOMINAL IN
  • Overall Distance Including Keys: 1.406 INCHES NOMINAL IN
  • Style Designator: KEY
  • Material Document and Classification: QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Outside Diameter: 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN
  • Material Thickness: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
Identification
  • NSN: 5310-00-086-9944
  • NIIN: 000869944
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 547A003091
  • Manufacturer: Northrop Grumman Systems Corporation
General Description

The Washer,key, cataloged under National Stock Number 5310-00-086-9944, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-086-9944
Primary Part Number547A003091
Item NameWasher,key
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Internal Straight Key Width0.122 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
Distance From Centerline to Top of Internal Key0.406 INCHES NOMINAL IN
Overall Distance Including Keys1.406 INCHES NOMINAL IN
Style DesignatorKEY
Material Document and ClassificationQQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN
Material Thickness0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
External Key Quantity1
External Prebent Key Angle90.0 DEGREES NOMINAL
Surface TreatmentPASSIVATE OVERALL
External Prebent Key Width0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
MaterialSTEEL COMP 304 OVERALL
Hole Diameter1.021 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5950-00-222-62593091 POSSIBLE MATCH
TRANSFORMER,AUDIO FREQUENCY
Possible match (shared part number)Magnetek Inc Lighting Products Group
5950-00-228-8782 POSSIBLE MATCH
COIL,RADIO FREQUENCY
Possible match (shared part number)
5915-00-495-7130 POSSIBLE MATCH
FILTER,BAND PASS
Possible match (shared part number)
9390-00-551-1347 POSSIBLE MATCH
NONMETALLIC SPECIAL SHAPED SECTI
Possible match (shared part number)
6105-00-553-05663091 POSSIBLE MATCH
MOTOR,DIRECT CURRENT
Possible match (shared part number)Moog Inc.
5930-00-716-14845008631-10 POSSIBLE MATCH
SWITCH,LOCK
Possible match (shared part number)Hyster-Yale Group, Inc. Dba Yale Materials Handling
5815-00-975-7300 POSSIBLE MATCH
ROLLER
Possible match (shared part number)
5340-01-191-27703091 POSSIBLE MATCH
BUTTON,PLUG
Possible match (shared part number)Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
1730-01-412-860100309-1 POSSIBLE MATCH
COVER,AIRCRAFT GROUND SERVICING
Possible match (shared part number)Plastic Reinforcements, Inc Dba Advanced Custom Manufacturing
5925-01-717-86523091-BSS POSSIBLE MATCH
CIRCUIT BREAKER
Possible match (shared part number)Navico Group Americas Llc Dba Power Products of Delaware, Llc Div Navico Group, Previously Power Products Llc
Cross-Reference Index
Part NumberManufacturer
547A003091 PRIMARY Northrop Grumman Systems Corporation (USA)
A547-650 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
3091 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
Reference documents
ReferenceMeaning
547A003091 5/9 Secondary reference
L3 Technologies, Inc. Div L3 Keo
003091 C/1 Advisory reference — outside the item-of-supply concept
L3 Technologies, Inc. Div L3 Keo
Related Parts
5950-00-222-6259POSSIBLE MATCH
TRANSFORMER,AUDIO FREQUENCY
3091
5950-00-228-8782POSSIBLE MATCH
COIL,RADIO FREQUENCY
5915-00-495-7130POSSIBLE MATCH
FILTER,BAND PASS
9390-00-551-1347POSSIBLE MATCH
NONMETALLIC SPECIAL SHAPED SECTI
6105-00-553-0566POSSIBLE MATCH
MOTOR,DIRECT CURRENT
3091
5930-00-716-1484POSSIBLE MATCH
SWITCH,LOCK
5008631-10
5815-00-975-7300POSSIBLE MATCH
ROLLER
5340-01-191-2770POSSIBLE MATCH
BUTTON,PLUG
3091
1730-01-412-8601POSSIBLE MATCH
COVER,AIRCRAFT GROUND SERVICING
00309-1
5925-01-717-8652POSSIBLE MATCH
CIRCUIT BREAKER
3091-BSS

Frequently Asked Questions

What is NSN 5310-00-086-9944?

NSN 5310-00-086-9944 is a Washer,key, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-00-086-9944?

NSN 5310-00-086-9944 has 3 manufacturer part numbers on file: 547A003091 (Northrop Grumman Systems Corporation), A547-650 (L3 Technologies, Inc. Div L3 Keo), 3091 (L3 Technologies, Inc. Div L3 Keo).

What NSN replaces 5310-00-086-9944?

10 possible matches (shared part number, not a government interchangeability claim): 5950-00-222-6259, 5950-00-228-8782, 5915-00-495-7130. Verify interchangeability with system specifications before substitution.

What are the specifications of 547A003091?

Key specifications for 547A003091: Internal Straight Key Width: 0.122 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.406 INCHES NOMINAL IN; Overall Distance Including Keys: 1.406 INCHES NOMINAL IN; Style Designator: KEY. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-086-9944 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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