Home · FSC 5305 Screws · NSN 5305-01-191-0416
NSN 5305-01-191-0416 — Screw,Close Tolerance
NIIN 01-191-0416 · unit of issue EA · AAC Z (insurance item) · source of supply SMS
NSN 5305-01-191-0416 is the national stock number for a screw,close tolerance in federal supply class 5305 (Screws). It cross-references to 1 manufacturer part number from 2 CAGE codes, including National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use, The Boeing Company; the primary is NAS1581C4R6. The unit of issue is EA and the FLIS list price is $16.74.
The U.S. government has bought this item 13 times on record, 1 of them in the last 24 months, most recently on September 17, 2025 at $12.00 each from Boeing Distribution Services, Inc.. The median unit price paid over 36 months is $12.00. 1 solicitation is open right now, the soonest due October 6, 2026 for 131 EA. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.
1
part number from 2 CAGEs
1
open solicitation, all agencies
1
government buy in 24 months · median $12.00
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| NAS1581C4R6 | 80205 | National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use | 3 · Design control (vendor) | 2 · Fully interchangeable |
| NAS1581C4R6 | 88277 | The Boeing Company | 5 · Secondary reference | 2 · Fully interchangeable |
Government demand
Open DLA RFQs (DIBBS)
- SPE4A626T37KQ · 131 EA · due Oct 6, 2026 · N · AMSC G · DIBBS
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Sep 17, 2025 | Boeing Distribution Services, Inc. 2V484 | 92 | $12.00 | Dla | SPE4A625P0ZC9 | |
| Aug 15, 2011 | Ufc Aerospace Corp. 5M696 | 170 | $1.98 | Dla | SPM5AB11V5075 | |
| Aug 18, 2010 | Boeing Distribution Services X, Inc. 2N935 | 34 | $2.07 | Dla | SPM5AB10V5904 | |
| May 12, 2010 | Cbs Fasteners, LLC 0F620 | 189 | $3.95 | Dla | SPM5A410MQC94 | |
| Mar 23, 2010 | Boeing Distribution Services X, Inc. 2N935 | 70 | $2.07 | Dla | SPM5AB10V2631 | |
| Mar 11, 2010 | Boeing Distribution Services X, Inc. 2N935 | 56 | $2.07 | Dla | SPM5A810V0060 | |
| Feb 11, 2010 | Boeing Distribution Services Defense LLC 3G1W3 | 15 | $3.00 | Dla | SPM5AB10V1945 | |
| Feb 10, 2010 | Boeing Distribution Services Defense LLC 3G1W3 | 26 | $3.00 | Dla | SPM5A110V2309 | |
| Nov 21, 2009 | Boeing Distribution Services Defense LLC 3G1W3 | 8 | $5.84 | Dla | SPM5A110V0930 | |
| Oct 27, 2009 | Boeing Distribution Services Defense LLC 3G1W3 | 8 | $5.84 | Dla | SPM5A110V0490 | |
| Jan 8, 2008 | Boeing Distribution Services Defense LLC 3G1W3 | 33 | $2.74 | Dla | SPM5A108V1628 | |
| Sep 22, 2006 | Boeing Distribution Services X, Inc. 2N935 | 4 | $12.50 | Dla | SPM5A306MM070 | |
| Nov 23, 2004 | Boeing Distribution Services Defense LLC 3G1W3 | 2 | $33.28 | Dla | SP054005MQA84 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 13 buys on record in total.
Sellers with confirmed stock
No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on NAS1581C4R6.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $16.74
- Unit of issue
- EA
- Acquisition advice
- Z — Insurance item
- Source of supply
- SMS
- Effective
- Feb 1, 2026
Item characteristics
- Thread Class
- 3A
- Thread Direction
- RIGHT-HAND
- Thread Length
- INCHES MINIMUM 0.376 AND INCHES MAXIMUM 0.426
- Fastener Length
- INCHES MINIMUM 0.761 AND INCHES MAXIMUM 0.791
- Head Diameter
- INCHES MINIMUM 0.350 AND INCHES MAXIMUM 0.399
- Grip Diameter
- INCHES MINIMUM 0.2485 AND INCHES MAXIMUM 0.2495
- Nominal Thread Diameter
- INCHES 0.250
- Grip Length
- INCHES MINIMUM 0.365 AND INCHES MAXIMUM 0.385
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- POUNDS PER SQUARE INCH 160000
- Countersink Angle
- DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0
- Surface Finish
- GRIP MICROINCHES 32.0
- Surface Finish
- THREADS MICROINCHES 32.0
- Special Features
- DRIVE RIBBED
- Material
- OVERALL IRON ALLOY 660
- Material Document And Classification
- OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S5731 OR ASSN STD SINGLE MATERIAL RESPONSE A-S5732 OR ASSN STD SINGLE MATERIAL RESPONSE A-S5737
- Surface Treatment
- OVERALL PASSIVATE
- Surface Treatment Document And Classification
- OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35
- Thread Series Designator
- UNIFIED NATIONAL JOINT FINE (UNJF)
- Specification/Standard Data
- PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS1581
About this page
An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.
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